Are you in the UK? I got my Ps5 from game for £480 either spiderman miles morales ps5 version, they had it in when I went to the shop. Its probably just checking back every once in a while and a bit of luck.

If you are leaning towards the series X and think you'll have fun with it, I'd say get it, but I wouldn't base your decision necessarily off of if there is a more powerful console on the way, as even if you waited for the xbox series x upgrade then the next next gen console would be around the corner so you could be waiting indefinitely.

Both the consoles have great graphics and I haven't seen either struggle in performance so I think they are both a safe buy, if a pro version comes out you could well the early version and buy the new