Not aware of a database. I can tell you there isn't much market for old Bingo machines. They are heavy to move. Nobody works on them. They are boring to play.
Sure, some people collect them for historic preservation. I've seen people give them away. I see them for sale on CL in the range of $100-$300. Crazy people list them for $1000 or more, but I can't imagine they ever get anywhere near that. I'd say you'd be lucky to get more than $300 each.