I'm not sure about the specific value of Firepower, but I'd say if you can pick up your all-time favorite pin for $575 in fully-working order you should jump on it.
You're right, and that is what I did... There is some fine tuning to do a few switches not working etc but nothing major seems to be wrong with it. I am still debating whether to get that back glass on ebay for $150, if it was a repro I would jump on it but I am afraid it will deteriorate after a few years and look just like the one I have now, it's already starting to peel off in a few places although it looks about 1000% better than the one I have. There were almost no lights in the back box when I got it apparently prior owners were using them for replacements when the playfield lights would burn out or just took them out because the back glass is so deteriorated. I got about a dozen light bulbs at radio shack today (all they had) and was going to replace some of them but I used most of them on the playfield instead. I think I have almost all the playfield lights working now. There were some switches that didn't work right, most of them I cleaned up and working some I still need to work on, the "lane change" switch attached to the right flipper is working intermittantly and I worked on it a bit but its still flaky, otherwise most everything seems to work. The plastics are in pretty good shape only a few with small cracks, and there is some playfield wear but it is not real bad I've seen much worse.
Pictures here :
http://home.ptd.net/~warewolf/pin.htmRegarding the playfield I would like to clean and wax it. Most people seem to be using novus 2 to clean, then regular caranuba wax that you would use on a car. Is it OK to clean / wax the bare wood where the paint is worn off the playfield ?