the lowdown with motown

Two days ago I bought over the phone my G1.  I know, I know I know there are hundreds of thousands of people who have the phone now and are enjoying every aspect of it,  but I live in the Detroit metro area.  I called several T-mobile stores and they all have the phone, yet for some reason they cant sell it till Tuesday the 28th.  the screwy thing about this is I cant think of a single reason why this is the case.  I could understand if they were rolling out the phones area by area... or if they were just waiting for 3G service in the area, (by the way November 1st is the tentative date for 3G in the DMA) but there not.  as of now I have no clue why T-mo is holding it back.