prosnurfer, after reading beyond the first paragraph where you try calling me out, it's pretty obvious you're just a rider, not a mechanic. you clearly have no idea what you're talking about when it comes to purchasing a bike or maintaining one. have you been on that same Kona for the past 8 years? i wouldn't be surprised if you have. sure, there are some really great used bikes out there. hell, if i were to try to sell mine, with the exception of some scratched paint from my rack, there isn't a damn thing wrong with it. i tune it pretty much constantly, replace parts when they're worn, and after working as a mechanic for 7 years, i'm fairly confident that my ride is as good, if not better than when i took it out of the box. that being said, your best bet to find consistent quality is to buy a bike from a shop. there's often a maintenance program that comes with the purchase of your bike (free 30-day tune up, half-off a tune a year later, discount on replacement parts up to 30 days, etc) and having a shop build and sell you a bike means that they're going to stand by the work they've done and should help you with any problems you might encounter (and if the problems are their fault, they'll do the work to fix it for free). now, if you buy a ride from some dude, no matter how chill he seems, you aren't getting the same kind of service and support a shop would offer you. sure, if you've done your research, you know how to wrench, and you've taken a thorough look at the frame (welds, pivots, BB and headtube, rear der allignment, etc) and the bike looks good, then go for it. but these are high-abuse frames and parts that cost a lot of money, so your advice to pretty much buy exclusively from some chill dude you meet on the interwebs or whatever is absolute horseshit.
Kona is krap.
so, to answer your question, compared to you, yes, i am a bike god.