I'm sorry to say your logic is not really logical.
I like GT6 regardless of whether or not it has standard cars. In my opinion, having standard car is an OPTION. If you don't like it, don't buy it. I prefer premium cars more than standard cars so I mainly buy premium cars in game. Having standard cars as an OPTION in game does not make me hate the game.
Also, by that logic (I like GT6 regardless of the existence of standard cars), I will continue support PD and buy GT7 again regardless of the existence of standard cars because standard cars again is merely an option. If you don't like it, don't buy it!!!
Now following that same logic, if you do NOT like GT7 that has standard car, do NOT buy GT7. If you don't like any GT series that have standard cars such as GT6, STOP playing it.
The logic is simple, I like the game, i enjoy playing it. It should be you who should not buy GT7 since you hate the standard cars so much.
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Also, it is NOT logical to say that I like standard cars simply because I don't cry about it. There is a position where someone doesn't like standard cars and at the same time don't cry about it because that person can simply choose to not buy those standard car.
Also, it is NOT logical to infer that someone who likes standard cars "should not buy PS4". Buying PS4 or not is an option by itself and whoever likes it can buy it.
It is very simple logic: If you don't like it, don't buy it!
last but not least, CRYING ABOUT STANDARD CARS is also an option and it is LOGICAL in this case that you continue doing it because you hate standard cars so keep up the crying about standard cars.
End of discussion.
Again, using your own logic, if next-gen is irrelevant to the discussion, don't buy a PS4, keep your PS2 and 3 and play with all the standard cars you want.