If you want to extend your advantage play lifetime, don't get comps. Avoid casino hosts.

If you don't care about your lifetime, then comp away. That is what I do. Note I get tossed in the first or 2nd day of a 4 day trip.

When I have made trips where I play the same bet levels (black chip) and don't ask for comps and generally act un-memorable I have gone over a 100 hours of play without one toss.