I didn't pre-order Leopard (aka Mac OS X 10.5) like I have with every other OS X release since 10.2. Do I feel like I need to rush off to the nearest store to do so? No. Do I want a bunch of goodies offered with the new version of OS X? Absolutely. My life won't be complete until I get my hands on the new Finder functions, improved AppleScript and Automator functions, and Mail improvements. (Apple Mail is a program I love to hate. I love it because of how searchable the "database" of email I have collected is. I hate it because on my MacBook, it loves to hang from time to time when I come out of suspend mode. Plus, for some reason - and I can't explain this in a scientific and well thought out manner - it flakes out with IMAP accounts and my process usage goes to over 100% until I quit Mail and restart it.)
My current situation is proof that I'm getting older and finally am less inclined to obsess over new technology. It feels good. Unfortunately, I can't seem to apply this same patience with everything I become obsessed with (ahem, photography, etc.). Maybe with more time...