I didn't expect so many replies so soon!
I find myself agreeing with all of you. In my first post I wasn't for my part seriously suggesting our hobby could be bad, just putting the discussion out there. I'm sure you're all well-balanced people, and it's great to hear your stories! Especially Ibrin.

Of all the hobbies out there, Tolkien-lore is surely one of the best to be involved in. The protagonists in Lord of the Rings are great role models. Aragorn, in particular, is principled and oh so very cool.
For me, The Lord of the Rings is the reason I have an interest in languages, in English, in maps, in art, in medieval history and culture, in archery, and in other things that do not spring to mind. I met on Tolkien forums all but one of my best real life friends, and my first girlfriend. The other friend has been converted. Yes, I've spent much of my money on books (never a bad thing), movie action figures (probably ill-advised), a ream of miscellaneous movie merchandise (at the time, it was so exciting seeing Lord of the Rings stuff at stores everywhere!), web hosting for forums, etc. But like Lal said, it's a hobby, and most hobbies take time and money. I cannot say with any honestly that I regret the use of either.
By the way, Morthoron, I'm one of those odd sports freaks and I'm going to wear my jersey to the hockey game tonight.