The stealerships won't change just the cv boots...they will only do the whole shafts and yes it is quite pricey. But not changing the boots will eventually kill your cv's. The boots are cheap and not overly difficult to change...time cinsuming (after the first one it goes faster) and messy. Do it sooner than later though. The longer you drive it the more chance of damaging the cv's. Replacement shafts can be found for cheap but most are considerably weaker than the oem shafts so you want to preserve your oem shafts as long as you can.