Don't regret buying my PS5 because I bought it for a lot more games (next gen and Sony exclusives) than just GT7.
If I had bought the PS5 just because of GT7... Yeah, I would have regrets for sure.
However, it's still a matter of perspective. If you are a hardcore racer who likes to just play racing and driving games, have a wheel setup and whatnot, GT7 is actually a very good game for those kinds of people, as it has plenty enough cars to experience (could've had a lot more, but still a decent amount regardless), a nice amount of tracks (just like the cars, could've been more) and it's driving physics while not Assetto Corsa level or true Sim level, they are still a lot better than most other console racing games. Plus the custom race feature allows you to just have an unlimited driving experience with and against several different cars.
Then there's the Sport mode, which on the upper skill bracket, is highly competitive, certainly better than most other racing games out there on this aspect.
For the more casual player however, those who just want events made by the developers to complete, to have a nice career experience on a driving/racing game, the game just doesn't deliver at all... And this isn't even compared to the competition, but compared to their own line-up of the past.
I for example, completed the game within the first 2 weeks or so after the game launched. I had to wait until the end of April to do some more events, which again, only took me like 3 days to complete, and from there... waiting again until the end of May to, a-****-gain, complete the extra events in 2-3 days. Now I have to wait until the next month to play some more added content.
Worst of all, some features introduced on this game that I have yet to experience due to absolutely horrid game design decisions.
The back and forth updates that either fix or destroy things, lobbies in online mode... the dirt tyres fiasco on licenses and missions, now we have the FFB of wheels completely ruined...
All combined it just doesn't give the experience we expected from a Gran Turismo game.
Come on man, why in the bloody hell can we still NOT SELL CARS!!!? WHY!???