Buy it now. No excuse

Most sony studios can only make one type of games. So its fine.

It will run on any standard 1080p 50hz/60hz TV or monitor. But if you want best experience then get a 4K 120hz TV with VRR. Call HG world before its sold out, TV you can buy anytime later but Pro stock is limited and it will not release here anytime soon officially. Get Pro first then upgrade TV later on. Get all details regarding warranty they offer. PS5 is quite reliable, it wont die if you keep it clean, well ventilated and use UPS if you get frequent power cuts.

Have a feeling this will be great.

Stealth release likely as per rumours after the reveal.