Hate to necrobump, but I recently became aware of a gba title that seems pretty hard to track down called "(4 Games in 1) - GT Advance + GT Advance 2 + GT Advance 3 + Moto GP". From what I understand, this game wasn't released in retail, but through a daily eBay deal.
I've seen a few of these up for auction at NA sealed, and they went for a pretty high price.
Anyone know more about this game/its history?