The people who put on the winternats don't want it getting any larger than it is. I think 174 entries will be the cap for a very long time. And there is more room for racers since the outlaw class is smaller now. 2004 had 3 mains of outlaw, 2005 had 1.
I think the 2006 winternats will be *THE* winternats to attend. With kyosho's racing program, you can bet AE, serpent, kyosho, mugen, delta, etc will be there in full force next year. Chris Tosolini's record was broken, I hope he returns to break the record again.