Comparing maglev to railed high speed

Slashdot today had an article about plans to build a maglev between LA and LV. I love the idea of a maglev - it's very science fiction - but given the poor record of the US to actually build anything anywhere on time and on budget I think they would be better off with a TGV style railed service.

The Transrapid MagLev has a number of problems over TGV/ICE/bullet style trains:

On the pro side, maglevs have a number of purported advantages:

But these turn out to be less significant in practice because: