I'm very interested in everything related to dev and proto stuff, especially nintendo carts!
Unluckily, I don't have much GBA stuff, so I'd like to purchase any Dev cart or proto cart ( any proto, even an empty cart).
I had a few empty gba dev carts I wasn't interested into, so I sold them all for a ridiculous price. I soon regretted selling them, so I just want to buy some of them back for my collection. (GBA is by far my favourite console)
The cart should be like this: http://i.imgur.com/SGvSuvd.jpg ( I found this pic on the web).
Send me a PM if you have what I'm looking for!