I used to listen to mostly whatever was thrown up on the radio. However, I've listened (and still do for the most part) a lot of the older "classic" rock, especiallly the more progressive type stuff like Asia, Styx, Yes, Kansas, and so forth.
Unfortunatly, I never cared for what the so-called "alt-rock", etc, ala Nirvana, Stone Temple Pilots, and so forth. Yeah, I've listened to it but it was just "there" - just did not really grab me.
But then I got turned onto power and progressive metal! Holy crap! I am not talking the old "hair-metal" and the like that I also remember listening to when I was growing up. Much of what I listen to is very complex musically. Often combining symphonic, orchestral work, ala classical (Nightwish, Epica, Lunatica, etc - in some cases, whenever possible, using actual full orchestras, such as Rage, and the current Nightwish albums), other times, a lot of Jazz phrasing, such as Zero Hour, Thought Chamber, some Dream Theater, and others, and often times, a combination of the two. That Suspyre album that I played in Indy last summer is an awesome example of what I am talking about, if anybody here that was there remembered.
Not only that, much of this material is actually recorded very well. For example, the Aryeon album that I am listening to right now is an excellent example!
I've also seen a number of these band in an actual, live setting, and have personally met a number of them - some of the, multiple times (and pretty awesome that they actually remembered me from show to show!). These guys have always been really cool and show a real, geninue love of the craft that they are masters of.
So, yes, I would guess that some of my musical tastes have changed somewhat, exploring much more in the underground power/progressive metal, which I find much more satisfying and viscerial from an entirely musical point of view. Yes, I still like to dig out the old Rush, Kansas, Yes, and so forth now and again, but find myself constantly exploring for exciting new music. Having the kick-butt Klipsch setup only makes it that much more enjoyable. I've been doing this when I still had my old Yamaha/Infinity setup from a few years back.