I ordered mine back in late May (June 9 delivery) for MSRP. Not much choice back then. Oh well, I got the $2600 rebate and have enjoyed driving it for almost 8 months.
BTW, I also bought a plasma TV for $3700 last year. I knew they would go down in price, but I could get it's replacement for $2000 now.
Moral of the story. If you see me purchase something - wait 6 months to a year.