You people are not very grateful. Read up on Snow Leopard or watch the WWDC keynote. If you have not taken any time to notice what Apple is saying about this upgrade is that it is, for the most part, an under the hood upgrade. Apple didn't have to re-write the entire Finder in Cocoa but guess what? They did. That alone is worth 30 bucks.
30 Dollars is like going out to dinner twice a week.
OMG, not only am I ungrateful, I am now officially a member of the group known as "you people." It's taken a long time. When do I get my membership card?
I've taken a lot of time to read up on what Apple has been saying about Snow Leopard. Yes, it's a lot of technical changes. Snooze.
Yes, I'll probably go for it, but I can't think of a good reason (yet) to recommend it to anyone else. Believe it or don't, most people really don't care about technical improvements. Try out "Cocoa Finder" on your average Mac user, if you want to see glazed eyes or a blank look.