If I really wanted a Flash Gordon I would take the best of the two Kiss machines to make one and sell or trade the rest for the Flash Gordon.

Even though the Flash Gordon is electronically a little more advanced and arguably a better player, Kiss is worth more and is a lot more sought-after machine due to it's theme and value as rock memorabilia.

The bottom line is if I had a Kiss and Flash Gordon in equal condition and had to get rid of one, the Flash would be long gone before the Kiss.

Kiss will only continue to increase in value while the Flash not so much.

They look pretty-decent. Restored Kiss pins fetch good money.