Yeah, but the subway really is only that crowded at rushhour. Usually it's just standing room only.
But yeah the Maglev is kind of a ripoff although the price for it and a taxi might be similar now. Driving would take maybe 40 minutes and that's going to be close to 40 RMB. The only thing that I didn't like was that the maglev didn't speed things up at all. You've got to buy your ticket, and wait maybe 10 minutes for the train to come. Then it doesn't start moving until you've waited for another few minutes.