If this delay had anything to do with sales numbers, that I don't think it would be just Verizon. I think it would be more of a Motorola thing. Motorola and Verizon seem to have a nice little thing going on together. Who knows. Maybe they have some sort of agreement where Motorola gets prime advertising and promotion with the Droid name. Kinda like how Budweiser and Coke/Pepsi products dominate store shelves while lesser known products are pushed to the side.
Think about it. For Verizon, a sale is a sale. I don't even think they make that much off phone sales since the price is subsidized and they're charging much less than the MSRP. They could care less if you buy phone A or phone B, as long as they have you hooked on a contract with a data plan.