That doesn't even seem like a feasible thing to do. GTA6 doesn't need to sell their games at some crazy price to make their money back, even if the 2 billion development cost rumor is true. GTA5 did a billion dollars in sales in its first three days and has gone on to make over 8 billion dollars by 2023. GTA6 is going to sell even faster and at a 70 dollar price tag, or even a pushed 80 dollar price tag, it'll probably do a billion dollars in sales in the first day easy. It'll then do great for awhile, then have another huge surge once the PC version is released. It's going to sell like crazy.
As for my limit, that's hard to say. Depends on a lot of things. Like I don't think Nintendo prices are particularly great for a lot of their games as is, so if they raise prices on the Switch 2, that's going to make more games a harder sell. I'll pay 60 to 70 bucks for Xenoblade Chronicles 2 and Zelda, but Animal Crossing at 60 bucks was insane, and that most of the Pokemon games are at 60 is just as crazy, let alone if they end up raising prices.
I'm more open to big budget PS5 stuff, I can see and feel where the budget is going, but I also get around the pricing by buying God of War or Last of Us, playing it, beating it, and then trading it in because I'm not gonna replay it, and I can put that money into another big new game. I did that with the Spider-Man games I had, I really didn't think I would go back to them any time soon, so I traded them in to pay for my copy of Final Fantasy 7 this week, though that would be a game I'd buy at full price, because I know I'm going to invest a lot of time into it. I would pay 80 or 90 dollars for Monster Hunter Wilds coming up, because I know that I'll dump hundreds of hours into that game. Hell, I'm probably going to spend that much anyways on whatever the bonus content version is going to be lol
I'm sure there's a point where I'd be like "That's getting ridiculous", but it doesn't mean I wouldn't get it, I'd just play less at launch and wait for sales or secondhand copies. It's how I do a lot of my PC gaming, waiting on sales for stuff unless it's a game I know I really want.