Yes, I would still buy. The main reason is size. I have a Ford Lightning and it is just too big for certain tasks.
But the $7500 credit would help me decide to get the bigger battery. When I bought the Lightning, I received the $7500 credit, no sales tax, additional money from Ford/dealer...
That would be cool. Kinda like the First #7500 orders (going by reservation number) have the option to buy now.
They will send you a serialized key and you can finance at $1/ month until delivery and then pay the balance or refinance before delivery.