$500 is reasonable for a nice new piece of kit like this.
I'll never understand this new idea of selling the gimped version of a console, without the disc drive, for $100 cheaper. Go big, buy the real deal, or wait for a price drop.
I've got a good deal of Playstation 4 games - God Of War 2018, Spider-Man, and Horizon in my backlog as far as games I still need to give some time to. Also, Ghosts of Sushi Mom, The Last Of Joel 2, and Doom Eternal (among others) I'm holding off on picking up.
I find Harry Potter about as exciting as watching paint dry, so Hogwarts doesn't do anything for me. That, and JK Transphobe is a cunt, so I'm not about to start supporting anything Harry Potter anyway.
Spider-Morales-Man looks like a decent "expand-alone". If that's a launch game, its a good one. And God Of War 2 should be good. But that's like a year off.
Honestly, even with the excitement of buying a new system, I'm just glad I saved a few of the last-gen standouts to play on it. Because it seems like launch releases are thin on the ground, because of Covid-19 shit.