I have the same philosophy with mine. Sure, I can go out and drop 6k on a new Honda CR250 and have a great looking bike, but the first and inevitable wreck, complete with broken plastics and all, would end that in a second. I like the fact that I can ride my bike hard without worrying about scratching the graphics, etc. I ran it against a 03 YZ250 and was dead even. I like to have fun with my bike, and that involves riding the hell out of it. Parts may not be as plentiful as newer iron, but you have provided me with some good resources I can use in combination with existing ones I know about.
If I ever buy another bike, it will not be brand new, and will probably be a thumper, but who knows. The Zook has so much life left in her. :)