I think part of the reason is that I spent my formative years growing up in a 3rd world country. Every day there would be outages of both electricity and water and now to voluntarily give those up, as well as other small luxuries...well...I can't bring myself to do it.
I'm also quite introspective and intellectual. For what it's worth, I scored "pure nerd" on the nerd test, and I believe that reading is the second most fun thing to do indoors. I tend to read mostly fiction, and most of that tends to be fantasy. Having said that, when a particular subject piques my interest (like physics or economics), I'll often borrow several books on that subject from the library.
Otherwise, I'd say I'm fairly typical. I like to do the "normal" sorts of things like hang out with friends, go out for dinner ( a lot), go to movies, etc.