The most ridiculous prices are usually attached to Harley's. I see more of them listed in CL than any other bike. All those sellers usually have modified bikes and they think by swapping the exhaust and handlebars, their 883 should sell for 10 grand. Bullshit! There's a reason I stay away from hogs, and this post is one of those reasons.
Well... Looks like Lucifer beat me to my rant. Oh well, I'm always trigger happy when ranting against Hardley Ablesons. My favorite rant: HD Owner: "I'll take an all metal bike over those plastic Jap bikes any day." Me: "Yeah, keep lying to yourself; cause we all know how much money replacing that metal fender will set you back versus my pre-painted fiberglass fender." Shoot, I was eating some lunch at my favorite burger joint when this ratty ass HD rider comes in. He begins talking about his bike to the cashier (I'm assuming they know one another) and he was all like, "Yeah gonna put some wide glide wheels on my bike. They gonna set me back a couple grand." I almost barfed.
I could go on forever about HD's.
EDIT: I just hopped onto CL real quick. Found a 1993 HD for $10,000
http://wichita.craigslist.org/mcy/4514655114.html. Bike looks nice, but no way is it worth $10,000, especially being 21 years old.
EDIT2: Now here's a real bike I would pay the asking price for:
http://wichita.craigslist.org/mcy/4518968096.html
EDIT 3: I think I found our winner. Claims to have over $41,000 invested and selling for $18,900:
http://wichita.craigslist.org/mcy/4516238491.html
EDIT 4 (I know, right?): I did a quick keyword search in CL under Private Owner and here are some figures to look at: "Harley" = 370 results, "Honda" = 297, "KawasakI" = 173, "Yamaha" = 212, and "Suzuki" = 122. This is only in the Wichita, KS area.