For now the correct way to do label variations is extra media. I really really don't want separate game pages for 15 Combat carts just because the TM is in a different spot of what ever. I have no problem with putting scans in the extra media or talking about all the different label variations in the game trivia section.
Now we do track Atari vs Sears releases. I am trying to think of a good way to track re released games like Gravitor. The Silver Label is worth a lot of money and the red label is worth almost nothing.
IMO, the Silver label Gravitar should be a separate variation of the red labeled one. Since it was exclusive
mostly to Atari Club members we should add that to the variation title like :
Gravitar [Atari Club Silver Label]. Think of it like a [Nor for Resale] variation. One of few instances where a variation is justified for an Atari 2600 game.