Sony makes two versions of the PlayStation 5, the $500 standard version and the $400 all-digital edition. The only difference is that the all-digital version doesn't have a Blu-ray disc drive, so you won't be able to purchase physical copies of games or play movies on Blu-ray and DVD. If you've already got a collection of PS4 discs, those will also work on PS5; this can be important if you want to upgrade PS4 games you own to the PS5 version. Used games will occasionally sell for less than digital copies too. That said, the all-digital PS5 is more affordable and is well worth the price if you find it in stock.