This is a disturbing trend. How are we, as potential customers, going to trust the developer to make worthwhile software? There's a TON of crap-ware being offered in the Mac App Store. We are not allowed to try/demo before buying. What if there's an incompatibility? What if the software is horribly slow? What if the next update to the Mac OS "breaks" this app and the developer does not bother to fix it or Apple takes forever to approve the fix?