My guess is more will be pulling in this week. HITS has not officially started - only the two unrated weeks with NOTHING this week. Doubt many are going to just sit around. I would try going over when it actually starts. Last year there were probably 15 or so shops set up.
I just got back from Jax and it seemed pretty empty to me... Bill Schaub and Don Stewart were there but they didn't have many going. I heard this week is supposed to be better but it I thought it was a lot smaller than previous years. I don't know how that is going to effect HITS entries. I do hope more venders show up though... that's one of the best parts (and the food!).