I've been dying to buy POKEY games for the 7800, but it's getting to be expensive and troublesome. Copies of Ballblazer for the 7800 are getting harder to find and this was to be expected. On eBay things are quite limited. Boxed copies can be had for about $30 to $50 dollars, but I'm not buying a mint or sealed boxed copy just to get the cartridge. Loose copies, well I'm only finding the ones with the red end labels, and they tend to go for $50 to $80. I sometimes see loose PAL cartridges for around $25, but I don't even know if they are compatible.
POKEY chips can be found in a 5200 console, but then I'd have to buy one, pay to have it shipped to me, destroy the console to get at the POKEY chip, remove the POKEY chip (which I don't even know how to do), and then ship it to Atari Age.
POKEY chips can be found in some Atari Arcade games, but no way am I going that route either!
The cheapest option that I can find is to buy just a board with a POKEY chip on it. Cost $30.
The one POKEY version that I'd really like to own is Bentley Bear's Crystal Quest. Cost? $52.25. So if I could go with the board that I found on eBay, which includes free shipping, my cost would be $82.25 not counting the shipping charge from Atari Age, and assuming that I can have this board shipped directly to Atari Age. And that's the CHEAPEST option!
If these boards like the one that I've linked to are common, and I have no idea if they are, perhaps Atari Age could buy them in bulk. The seller seems to be offering that option (for $25). If Atari Age passed that expense along I'd be willing to do it. Actually, I'd also be willing to buy the board, have it shipped directly to Atari Age, and have them use that. But I am disabled now so my options are limited.