Why do some PL'S spend a crazy amount in the club when ORC can be had for the sa

There is a regular in my main club that comes in a lot and usually spends at least a thousand or more on the same two or three girls he usually does VIPs I'm just wondering does he know that these same girls can probably we had for OTC outside the club? I just don't get it I always use the line if I'm going to spend money like that I'd rather spend it outside of the club maybe some folks just don't know it can be done