Neri has a very proprietary air in that scene: "Did you hear what I said? Keep it going!" I always inferred from that last line that Michael gave Neri a piece of the ownership of the hotel that he wrested from Klingman, thanks to Neri's muscle.
Neri may have had points in the hotel/casino, but I don't think that lines was indicative of such. Consider that he had just assaulted Klingman and ordered him out of the Casino all with impunity. I imagine the showgirls were pretty impressed since, to that point anyway, they knew Klingman to be in charge. Now they knew who WAS in charge.
