I think its probably just a placeholder of what Amazon is expecting, remember even AIB's don't have final pricing until just 2 weeks before launch. Yeah they have the pricing by which they purchase the chips, but then depending on the actual MSRP they have their profits.
So if AMD were selling these for $580 to them and they set a MSRP of $650 then that is barely 10% wiggle room for them. if they were selling them for say $450 and they set an msrp of $550 then that is $100 for them.
I think AMD would like to price these really low, as low as they can without cutting into their profits, but I also think if they don't price them as low as possible they are going to lose even more marketshare. People are just going to skip this generation as a whole if their 9070XT is $750, that is way too much. I mean even if its say 10% faster than the 5070ti, its just not enough.
I don't know, its either way too fast, faster than we are all imagining, they have some insane gains over the previous generation, to the point where maybe the 5070XT competes with the 5080, who knows. If that is the case then I can see how $750 would make sense, but I just can't see it being that fast, that would mean 20% faster than the 5070ti, I just don't see that!