I'm glad I've picked up the cheaper 3.0 drives even thou they work backwards, as the newer stuff sure it's faster but until direct storage is actually a thing and nvme drives are used far better than they are atm i just don't see the need myself yet.
Maybe more as a system or editing drive but tbh i don't think it really makes that much difference when loading a game really.
Like the 1tb drives i started with were fairly expensive way back but the 2tb I got the other day was £55 to me that is good enough than some hyper new 5.0 drive.
I think by the time i've upgraded these kind of drives will be far far cheaper, the corsair's I have do very well not far behind, but yep the samsungs are and most likely always be that bit ahead I have one in the system.