I suspect that a lot of stands, VESA adapters and wheels will be thrown in as "deal sweeteners" for businesses placing substantial orders, so that the procurement officers of the world can justify their existence. It is interesting to note that the MP order page is encouraging businesses to register for better pricing - not something that Apple has done before, whereas 'sky high retail price, 30% discount at the drop of a hat, trebles all round if you don't haggle' is a fairly common business practice elsewhere.
PS: Dang! I better stop checking the prices of Mac Pros and high-end PC workstations for the sake of these debates... I'm now getting served ads for Rolls Royce dealers...