I have an '04 EC250 (DE). I love it! I can't compare it to your crf250x, but I will say it has made me a much better rider. The bike has great manners and suspension, it never gets upset in the whoops and rough stuff. The power is more than ample for me and I like the single taper needle like the LTR needle for smooth usable power.
Like Brian, I'm not worried about resale because this bike will last a long time. It's nice to look at the nice new young models, but the one I have treats me just fine. That goes for my bike too!