1500-2000 PC would be twice as powerful as PS5.

If you pay 1000, you get:

• 1440p@60 at max settings gaming machine
• you can play games from all systems (if they are ported to PC)
• if games are not ported, you got emulation!
• ginormous backwards compatibility log
• ability to do whatever you want with it (watch movies, work, browse internet, code, edit photos, whatever you can think of)
• You also do not have to pay subscription fee to be able to play online
• Games generally are cheap and can be acquired in bulk
• 4 times a year Steam sales and free games offered by competitors
• Can be used with pretty much any gamepad out there + tons of insanely good 3rd party options.
• If you do not like Windows, Linux can run almost any game.

Btw, 1000 is for a Steam Machine. You can get used parts that are better for even less. And you got a huge bump up if you already have some hardware beforehand.