If you don't, you'll drive yourself nuts wondering what would have happened if you'd gone. If you go, you'll know.

Are these the first people to have ever reviewed this paper? Then, okay, yeah -- that's eerie and you may want to find someone (anyone!) to pick it apart before you get to the conference. Or have you already gone over comments from past readers? If so, then consider that maybe your paper says all that it can say on the subject for its scope. *shrug*

Congratulations!