Maybe you should give more time. Like an extra week or so. I'd really like to participate, but don't have the time now. Next week I do, I hope. Because it takes some time to really put together a competitive list.
Of course if there's someone on a list who'd decide to die in that extra time given, he/she would really give you a hard time. But there's got to be a solution for that matter.

I don't want to ruin the game or break the rules, just giving a hint for if there might turn out to be too few participants.