A lot of operators seem to over-value their machines. If that Double Dragon cost $3600 in 1987, it should be worth at least $2500 today. I can't believe they actually think that, particularly if they go to any auctions
There's 3-4 regulars at the auctions in my area who are ops. It's not that they believe that's what it's worth, it's that the people who actually go to THEM to buy a machine more than likely only knows how much Hammaker Schlemmer or The Sharper Image sells a brand new machine for, so they can easily be scammed if they're ACTUALLY in the market to buy.
The alternative is the "well, I've got it, and you want it" idea. Set the selling price super high to start with, so in the end after haggling with the op, the buyer think he got a stellar deal, when the op actually just sold the machine to the underinformed buyer for double what he could have bought it at an auction for.
Either way, the op makes a ridiculous amount of money if that person buys a machine from him.
My brother-in-law in Florida was bragging to me about how he bought a Golden Tee '04 for $3200 from "someone he knows" (who turned out to be an op, after the conversation went further) after I was telling him I was going to an auction. An '06 at that same auction sold for $1500
