Yeah, it does get expensive, but after having seen and replaced chinese bearings on cars within a year of replacement..........now youve spent $120 on 2 bearings + your time to swap....or you can get just the OEM bearings from steve for about $40-50ish a piece, but would still have to remove, take to a machine shop, press out old, press in new, replace.
However, if the old bearing scores the hub on exit, the hub itself may not longer be useful.
How long have your factory bearings lasted? I replaced one rear one so far about 5k miles ago and am at 114k miles. Then again, I reside in a subtropical climate...