Now that I'm a practicing Adult®, I still kinda dream of WoW Classic being what we all remember the original game being, but I also know that if I got that involved in planning and running raids now, people who rely on me to be responsible would suffer. I'm content with being part of the 95% that don't have that kind of free time to commit to planning before actually playing a game.
I used to enjoy Rugby, but I was 17, if I played Rugby now I would enjoy it. But I am glad it's available for 17 year olds who want a go.
One thought though, my guild has actually re-awoken in the last few months. I'm still on the mail list - as apparently was everyone else, and now people are talking about doing instances and so on. I couldn't have done it until recently, because I had small children - so as everybody knows, fugetaboutit. But, if WOW was in TBC state with some interesting new content I'm pretty sure I would jump in.