The 65% mentioned above sounds about right, based on conversations I have with people. Some accumulate miles without really going out of their way to get bonuses or Elite status, and some are just clueless. A friend of mine who is an employee benefits consultant travels a lot, and told me he hasn't signed up for any programs- too much trouble.

I think that what separates us is that a lot of people either don't travel frequently or don't care to travel for liesure. If the former, you just put up with what you get. If the latter, building up points and Elite status really doesn't have much benefit.