sounds like you need a new commuter to me! each bike should have their own extra set of wheels. the $300 you save will allow you to pay for one of those extra sets of wheels. BTW, why worry about extra wheels for the commuter, you can just commute on the surly if you have to. and if you really want a 2nd set of wheels for the LHT, the $300 you save will pay for a 2nd set of wheels so buy the used one.