Yet i see qbert modified cabs goin for $950 /boggle
I don't know if this is helpful or not, but I'm just being honest.
There are a lot of problems with selling that particular DK3
First, DK3 was a much less popular game than DK or DK Jr. Your avage joe probably doesn't even know it existed. You'd probably do better by taking it back to a DK Jr. but I still don't think you'd get $900.
Second, that cab is far from perfect. It's a particle board cab, which isn't necessarily bad but isn't as desirable as the plywood cabs made in Japan. There back edges are rough, the bottom front looks a little chewed up. The CP isn't right. The buttons aren't right. It's got a DK Jr. maquee. The sidart is messed up. It's dirty. The T-molding is wrong. And that's just looking at the pictures, which are almost always deceiving because you can't see all the little flaws.
If you had a mint or near mint DK or DK Jr. with all original hardware and art in beautiful shape, with a plywood cab, that hadn't been repainted you might be able to fetch that sort of price to the right buyer. Or, if you had a genuine red DK, with all the original art and hardware in very good shape you could propbably get your $900.00. Or, if you were in the retail business, had a store front, were offering warranties, and selling to a non-eBay/KLOV market you might be able to get $900.00 with some minor restoration.
If you keep that cab up on eBay for a year you might be able to find somebody with no knowledge who would pay $900. You're probably looking at around $400, more or less, for that machine on KLOV. A recapped monitor means just about nothing to people here since that's such a cheap and easy fix.
You know, all that being said, I applaud you for not stripping the thing down and turning it into a MAME or doing some sort of botched restoration. I just personally think that to get the sort of buzz you'd need to sell a DK or DK Jr. for $900 you'd need to have a near perfect specimen or a red cab DK. I've seen Red DKs in decent shape sit for sale for $800 and not move.
Q*Bert is an entirely different beast. I just don't think it's a good comparrison.
Anyway, that's my take. I'm definately not offended by the asking price, I just think it's too high (like just about every DK cab you see on eBay). I wonder whether some of these people would be better off listing at $300 and hoping to get some bidding wars. I don't know, maybe some of these things sell for $1200 or $1500 but I havn't seen it.