Deals through January 2nd

All, looks like most of the Winter deals are good through January 2nd. I live in GA where they tax the full price of the vehicle for 2017, but the law changes to just tax the payments in 2018. Since most deals are good through the 2nd, is there any downside to me waiting and pulling the trigger on 1/2/18? For a dealer, is that still viewed as “end of the month”? Any risk of MF, RV or incentives changing for the worse between now and then?

Thanks!

They should get better. It doesn’t make any sense that the deals would get worse as the inventory sits.