Just my experience mind you, YMMV.

My first cab buy was a working Roadblasters sit sown I bought off of Ebay. Paid around $225 for it.
Next up, I did a bulk buy for $800. I got a Sit Down Spy Hunter, a Pac coctail converted to Capcom Bowling, a Time Pilot upright, a Ikari Warriors converted to Arlington Horse Racing, and a incomplete Crossbow.
The following weekend, I went to the local auction and won a Apache 3, a Space Duel converted to Aliens, and an Aqua Jack that was missing the monitor. Total for those three after fees and all was $110.
The next auction I won a non working Hard Drivin' deluxe sitdown and a Namco Air combat missing it's monitor. Total there was $30.
Notice a pattern here?

Away from auctions, it's a lot easier to justify the price of a nice cab. While all that stuff there would cost money to buy and build from scratch, the reality is that it's dumpster food to most operators. My figure of what's it worth comes from seeing what such cabs fetch at auctions, which is basically nothing. I have seen desirable classic gutted cabs in nice shape fetch $80 to $100, but that's only to someone who's figuring on restoring it and and Ebaying the cab for $800 to $1000. There are lots of cabs that would suit your needs you could pick up for free to $25, especially without a monitor.
The point: (has to be one here somewhere.)

Shop around more. At that price that one isn't going anywhere.
