Both are great bikes. I rode KX250s for several years. I sold mine and bought an 03 KDX 200 as our motocross track closed and I'm getting pretty close (OK, real close) to qualifying for AARP membership. My only two problems with 250 MX bikes were lack of distance on a tank of gas and low top end speed. The KDX solved both of those problems, but it doesn't come out of turns like the KX. Hey, as I see it owning either one is awesome; owning both of them is &*()(&^%%& (words can't describe it) Congratulations!