You actually answered this yourself, your adding hundreds of dollars to an already expensive purchase and you may actually end up happy with the wheels that are on it. I don't know about wheels, being where manufacturers go cheap, there are lots of other places where they can do that. Wheels are a poor one, because wheels are complex and cheap wheels are more likely to result in more warranty claims. Better to go cheap on stuff like handle bars, bar tape, stems, seatposts, saddles, cranks, chain-rings, chains, cassettes, tires, tubes and rim-strips, parts that are simple and less likely to result in expensive warranty claims.