This is a nice idea in my opinion but there is also the rematch button. Or you could challenge your opponent for another game after he/she accepts the first one.
Two-game seeks
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Most seeks that I have seen are random in turns of who plays what. It would be nice if the opponent requests two seeks. It helps to see if they are better at playing black/white.
Hmm, I just issued six seeks and only one opponent actually grabbed a pair. Now i do know that I could be challenging people back, but if individual challenges were so untroublesome (yeah, two more clicks on les internets are too much trouble to bother) we wouldn't need the seek system, right? 
Chess.com, code an option so we can issue two-game matches through the automatic, neat and oh-so-smooth seek system. Pretty please, with sugar on top.
When opening a new seek on CC, we should be able to opt for a two-game match, just like it happens on some Tournaments or Team Matches. This way, we could play a game as white and another one as black, which would be especially good for Chess960.
Most times I open a pair of game seeks expecting that my opponent accepts both of them, but often they do not. I see that I'm not alone in this, quite frequently there are some pairs of seeks opened by another players. So, pretty please, make it happen.
Cheers