I know that Apple likes you to pay for their point releases. In the past I have seen that the point releases are more than a typical point release.
However, there is still something pyschological about forking out that much money each release.
Tiger has some nice features, but nothing that really makes me think “WOW I NEED THAT”. Maybe I haven’t seen it yet. An automator, RSS in Safari, and others are certainly not it. I will be interested in Spotlight though, and some of the other features.
I think it would be easier to stomach as a subscription model. I am always happy when I see Software Update jump up and grabbing the latest and greatest applications. I appreciate that hardworking developers like me ;) are working on this stuff and need to be paid.
It would feel better if I paid for a subscription for $X/year that granted me access to new features, including new OSes.
But maybe that is just me.