I've been looking around at buying a bike. I don't need insane power/speed (but I do love a nice exhaust sound and some "omph"). I was at a bike shop the other day with my buddy and they had the new 2008 Ninja 250's. Damn they look much better! And cheap too ($3,499). But after test driving one, they sound pretty buzzy, and I'm wondering if a 250 would get boring, but I don't know yet. I know for that money I could get a used bike (say a 600 or something), but I'm VERY skeptical of past owners. People are idiots and ride around at insane revs everywhere/drop their bike/etc. But that doesn't mean I'm ruling out getting pre-owned. I'm still somewhat new to bikes. Thoughts?