Probably not at launch. I want to buy it for PS5, and I don't even have one of those, yet. I do have a registration in on playstation.com, but that's dependent on my income tax refund hitting my bank in time. It's been sent to my bank, but it takes 1-5 days to actually show up. So when it does, I'll be buying a PS5. And if I don't get it through Sony, I know I'll be paying more for it; and I'm OK with that. I do have a limit on what I'll spend, though.....so it won't be "I'm getting one no matter what it costs." It'd be awesome if I got the email from Sony after I get my refund so I could get it directly from them at (I'm assuming) a lower price than a 3rd party seller. But I know I'll be getting GT7 (and another game) as soon as that money hits my account.
And I'll most likely get the Anniversary Edition. That way, I can start on my PS4 if I don't have a PS5, yet, when I get it.