ORION MK. V  Agree with all the above. It's INDISPENSABLE once you've used it. At $20 it'd sell like hotcakes, but the time it saves me each week easy makes the regular price just fine.  
(Version 4.3.5)

DONMONTALVO  I agree, for what this brings to the table, it's way overpriced. It's good stuff, for sure, but certainly not worth $35. Lower the price to $10 and watch people stampede to get it.

Don Montalvo, TX  
(Version 4.3.3)

HMURCHISON  Getting in at a discount is good thing. That's how I've done it and I'm pleased and will be upgrading during the next major upgrade. DFX isn't cheap and that causes people to hesitate but once you've setup your folders and leveraged some of the other features you just kind of expect these features to be a part of your computing life. I love the tagging on Open/Save and pretty soon I'll get savvy with the keyboard shortcuts. Everyone has a different value system but let me tell you this ..if you have a fairly organized folder hierarchy and you "know" immediately what file goes where DFX is painless to setup and you can begin to learn the other features.   
(Version 4.3.4)

WOODEN BRAIN CONCEPTS  In addition, this company handles upgrades very poorly. ($15 to upgrade from previous versions, or nearly half of original, already high price.) For a piece of single-purpose (however useful) software that costs more than a whole operating system (Snow Leopard) or at least a good chunk of the cost of an operating system (earlier OS X versions), it really should be a lifetime license. I have already bought this three times (including OS 9 and twice on OS X), and resent being asked to buy it a fourth, or fifth, etc., time. When version 4 came out I just said no. I'll drag & drop a folder from the finder to open & save dialogs instead.  
(Version 4.3.4)

HMURCHISON  Wait let me get this straight. $15 is a steep upgrade price for a $35 app? I certainly hope you don't look at the upgrade price for iLife or Bento. Default Folder has been around for years which is a testament to the developer's ability to keep it modern. If you don't see the value or if dragging files to your folder is worth saving $15 more power to you. I can't buy more time so I buy apps that help me save the time I have.   
(Version 4.3.4)

ST. CLAIR SOFTWARE  I also only charge for upgrades every couple of years at most. And there's typically a 6 month grace period (you don't pay an upgrade fee if you've paid for DFX in the last 6 months).

I try to be fair with Default Folder X 's pricing. It saves people a lot of time and to be perfectly honest, it's expensive to maintain and support. Some people complain that it's too expensive, while others offer to pay for upgrades even when they don't have to because they value it that much (and say they want to make sure I keep supporting and upgrading it).

As the saying goes, your mileage may vary. If DFX doesn't save you enough time and aggravation to justify its cost, then it may not be for you. For others, I get feedback like this tweet I saw today: "Turned off Default Folder X to take some screen shots. It's like someone taking my mouse away!"  
(Version 4.3.4)

SOLVS  I get that you have to make money and all, but I also bought it at discount and think it should be a bit cheaper. Love the app itself, and the continued updates (though I rarely have an issue) and ever since I d/l'ed the trial find it indispensable. And I NEVER buy plugin-type apps. But for the price, it's hard to justify to others.   
(Version 4.3.5)

WOODEN BRAIN CONCEPTS  If you had a truly nominal upgrade price, like $5, I'd have no problem paying it. I know it seems silly to quibble over $10 but developers have to understand that their products are but one of possibly hundreds power users will use and those fees add up. If some people offer to voluntarily contribute for maintenance update, that might be a viable model also. Charge a nominal fee but ask for voluntary extra contributions from the die hard fans. When you offer discounts or promos, consider also discounting the upgrade fees. Default Folder is an excellent utility but it basically does one thing (however well), and it's hard to ever feel that the product is updated, rather than compatibility with OS changes is maintained. (I know new features have been added but personally I don't really use more than the basic functions that have been present since OS 9, and I suspect that's true of many casual users.)  
(Version 4.3.5)

ST. CLAIR SOFTWARE  No, that's actually one of its minor features now. Its major features are:

1. Going to folders very quickly (via clicking on Finder windows and having recent and favorite folders at your fingertips)

2. Having tags, Spotlight comments, rename, the Trash, and other things available in Open and Save dialogs

3. Hierarchical menus for traversing multiple folders quickly

4. Keyboard shortcuts for favorite and recent folders in both file dialogs and the Finder

5. "Rebound" which re-selects the last file you chose in an Open dialog

There's a screencast that covers many of these at http://www.stclairsoft.com/download/Screencast-Overview.mov  
(Version 4.3.1)

MARUKO DRINKING TEAM  BTW, it also begs the question: why the hell are the Mac's Open/Save dialogs so abominably horrible? Every version of Windows since 95, and even Linux/Solaris/Foonix since somewhat more recently, has positively kicked the Mac's butt in this particular area. And it is one that I have to assume most people use many times per day. But I guess that's a discussion for some other venue...  
(Version 4.3.1)