I have to agree with the complaints over the price being to high. In fact, it's arguable that this level of screen capture functionality should be included in Apple's OSXes in the first place.
However, to be fair, this is probably the most up-to-date screen/movie capture app going on Mac OSX. Plus, it costs money to license Flash technology at this level, so if you want Flash output (many do) this is not a bad deal at all (not to mention convenient).
It might behoove the developer to the the Lite/Pro approach, leaving out the Flash component in the lower-end version - especially useful if you already have a Flash encoder and don't need another. Pricing this product at a $15-$20 range for a lite version, and $50+ for the Pro version, would end all the negative comments (more stars, more sales, - quid quo pro).
To be totally fair, SnapX Pro (finally) upgraded their product a few months back to make it compatible with the newer version(s) of Mac OS X (there was quite a delay originally). I bought this once and have had free upgrade forever. How fair is that?
So, now that I have confused everyone...