Heh, thanks guys.

It's actually priced at $150, but I wasn't sure that it'll fit through my computer room door... So I told the guy that I would think about a way to get it in there and let him know. I must have known enough of what I was talking about because on my way out he said that if I bought it within the week that he'd sell it to me for $125. Apparently he's the owner/manager and I lucked out a bit... So I called back a few minutes ago and I should be picking it up on monday evening. My first arcade machine, and it even works...!!!

The place actually has a number of machines at $99, though nothing spectacular. He had a knights of the round in good condition for around $400 (I forget exactly) and another machine right next to it for $275. There were some wierd ones like a light gun game that didn't use a monitor, but seemed fully mechanical for $99. heh. Anyhow, the rampage machine wasn't on, so I asked him if it worked. He plugged it in and tossed in some coins, it seemed fine. I think it was off because of the popping speakers/backlight issue. There were 3-4 really old machines that were in the corner, not turned on, that had no price. I did notice a kangaroo that was in good shape in these. It didn't sound like he had very many offers for his machines, maybe that's why Utah has no auctions that I'm aware of.
Anyway... For those of you in the Utah area, it's the Nickelcade in Orem. There are a couple nickelcades in Salt Lake and/or Ogden as well apparently, those might be promising to check out too.
Thanks for the encouragement everyone, I'll post some pics here when I get it.