That's what made the ad funny, Fast Eddie. There have been a few good condition, stock KZ1000s of similar vintage for sale for between $1,500 and $2,000 and the owners can't seem to sell them.
It makes you laugh because there are sellers that can't get $1,500 for a decent KZ1000 yet this guy think he's going to get $6,000 for one that's been ruined.