They can often times be hard to find in stock. Probably because of their price. Have you tried Shooters in New Haven? I know Jerry has them in when he can get them. Other than that I don't know of any other shops that regularly carry them in stock in the area. You can check with Russ at Ranger Supply Co. and see if he can order you one. If his distributers have some available he would order you one.
Marion Big R store Has 380,9mm,40,45 pistols in stock all on sale right now I believe the 9mm are $138.00 the 40 and 45's 159.00 also have the 9mm carbine not sure of the price on it.
I'm not sure if you are still looking for a Hi-Point C9 since this is an older thread, but I was at Beech Grove Firearms today and saw one in their display case. I didn't catch the price on the tag, but their prices are always reasonable.