I guess this is my week to get my balls busted.......
They sold okay when you consider the relatively limited Q*bert ownership, and the guys that bought them seemed to like them very well.
Gottlieb hardware and code is tough to work with, Clay found out the same thing, and at the end of the day you're putting forth a lot of effort for a product that has a limited audience. That is the reason for the blanking between games that isn't flawless and can't be without adding lots of hardware and code to an already price sensitive situation.
Consider two titles had never seen wide release for Q*bert hardware (7-Eleven and Tylz), and that 7-Eleven may have never been discovered if not for this project and Tylz was recovered and restored from an auction pile of boards.
Now I'll ask you- does the guy selling overlays for $45 bucks a pop deserve his margin for a little adhesive and ink; does the wedding photographer deserve his margin for a little film; and finally does the guy making multi kits deserve his margin for a few chips and parts?
The fact is the margins are much greater for JAMMA adaptors and artwork than ANY multi kit. Nobody makes multi kits out of profit motivation, there is simply too much time in development and post sale support to achieve motivation by dollars alone.
Personally I enjoy the extra communication and relationships with other collectors that have grown out of making a few kits- that's the bottom line for me. If not for past projects, I would have never met the interesting cast of characters that collect arcade games along with many I now count as friends.