The guys in my unit who fly for the airlines all live near their mil flying job. All have said it offers them much more flexibility to drill/fly on off days from their respective airline (e.g. much easier to pick up a flight/sim/duty for pay). My thoughts are if you live in domocile, yes you don't commute but the tradeoff is having to get yourself to your drill location, then hope the reserve command picks up the tab for lodging/transportation etc.