Lol-dental surgery!
You're right to be some what spectical, but I think it depends on your temperment.
I don't mind jumping in as one of the early adopters - I did it here and I really do it with my Tivo stuff. Sure you have some problems at first but I kind of like being part of the solution.
If you wait, I'm sure you'll be able to wait until more stable/better maps 7.?? or something comes out and of course at somepoint you'll have to upgrade, but maybe there will be a feature that you'll just have to have that will force you to make the move.
I think by virtue of reading/posting on this board you're an early adopter at heart