I don't fly enough that I ever get bored of it or miss home, and fly barely enough to maintain mid-tier status. In fact, I wouldn't mind it if I flew a bit more, although I could go for a few more mid- to long-haul flights, as the vast majority of my travel the last 2 years has been between ORD and the east coast/southeast (ATL, CLT, IAD, BWI, LGA, EWR, BDL, BOS, CVG, CMH, YYZ). The last 2 years, I've only gone west of the mississipi for work once (ORD-NRT-ICN). The other times (HNL, SAN, LAX, IAH-HNL, MSP-DEN) were all personal trips.