Most of the LV hotels, particularly the bigger ones, are changing to a management philosophy of making each area of the hotel (casino, rooms, food, entertainment) profitable on its own.
And you are less likely to get comps for playing poker than for giving the house a shot at your bankroll in -EV table games. Comps policy in the new corporate world of LV is essentially rakeback. They will give you back comps amounting to some percentage of the amount they figure to take from you in poker rake, losses at the tables, slots action, etc.
For poker rates on rooms, see
allvegaspoker