I'm not always flying to hubs. Depending on my flight departures & meetings with clients, sometimes directs aren't available.
However, I do see your point about flying through hubs. I suppose, if I think creatively, I could book flights through hubs to my final destination versus the TPA/ATL/XXX convenient flights. Longer flights through hubs would definitely give me more MQM's (which is my goal for 2011). I'll definitely make that a possibility.