Sorry to resurrect an old thread, but I'm closing in on completing a complete cart-only retail-released SNES cartridge set, and I want to get my ducks in a row, since according to my below reasoning, I only have 27 games left to go to complete a retail-released US SNES set.
It seems that Exertainment MBR/Speed Racer waas never released to retail (An employee warehouse cleaning sale doesn't count as a retail release.) and that the 2 competition carts were only available to people who had memberships with Nintendo Power, so it seems that these 3 carts shouldn't count in a retail-released set. It does seem that Super 3D Noah's Ark, ISS, ISSD, and Super Copa were all released to retail, and so they should all be counted in a retail-released set. I do understand that Super 3D Noah's Ark (and Nighmare Busters when it's finally released) wouldn't count in a licensed SNES set, but they would (and will) count towards a retail-released set.
I also dount count the Super Bomberman Party Pack, because the game is exactly the same as the regular release, and I'm only going for a cart-only set. This Super Bomberman Party Pack would only count for someone trying to complete a complete boxed set, since the box is different.
So, If I take the DP SNES list of 722 and deduct the 2 competition carts, Exertainment MBR/Speed Racer, and Super Bomberman Party Pack and then add ISS, ISSD, and Super Copa, then I come to the number 721 being the total for a retail-released cart-only US SNES set. (When Nightmare Busters is finally released, then this number will of course go up by one.)
Any more thoughts? Or am I missing/forgetting anything?