Rio has gone to shit and won't comp you much for that action anyway
At your level, places like Harrah's, Flamingo, Stardust, Horseshoe, Golden Nugget, Tropicana, Station properties are places you'll be able to get something for your action that actually have something to offer. Avoid the dives - IP, Casino Royale, anywhere else downtown, Riviera, Frontier, Circus Circus, Coast properties - you don't want to stay at or eat at these places, trust me. The nicer properties might not even rate you at those levels (they require a $25 average bet just to get rated) and if they do will give you very little.