Thanks to backwards compatibility, many of us want to move quite large software libraries from PS4 or Xbox One to their successors. New AAA games on the new devices probably won't be small either, so the internal 825 - 1000 GB will be filled up quite fast.

Both PS5 and XSX can be extended with fast SSDs, but neither option (PS5-compatible NVME-SSDs with strict speed requirements or proprietary Xbox-SSD-"cartridges") will be cheap.

Instead of deleting games from the SSD(s) and redownload them (or their huge patches) later, you could move them to an external HDD and move them back to SSD when you need them again. That should be much faster than redownloading them or reinstalling them from Blu-ray (plus redownloading mandatory patches). In some countries that would also ease the internet data cap problem.

Additionally PS4 and Xbox One games can be started from external HDDs and even if the loading times will be much longer than from SSD, I expect them to be noticable shorter than on the current consoles, since the "Jaguar handbrake" gets released.

So how much (and what kind of) additional storage will you probably add to your PS5 or XSX in the first year?

Since I only have 1 TV like a pleb I'll only be able to play one game at a time. So unless they release a game that's bigger than the internal storage I don't think I'll upgrade.

I buy mostly physical games, so I don't need to upgrade.

600 for the console and 300 euro for a 4tb ssd? 900 for the best game experience outside of PC gaming

Probably 1-2TB Nvme after the first couple years as I expect the game file sizes to be super dumb next gen but I also expect SSD prices to come down.

I usually delete a fans after completing it so I'll take a wait and see approach unless there is a premium model that extra benefits other than more storage.

no way these consoles are launching with 2 job specs

Will probably do what i've done with PS4, delete the game when i'm finished with it

Adding the Maximum possible Internal and External to both consoles Day One, and will continue to upgrade Internal as larger capacities become available.

I bought a 4TB external for my PS4 Pro back in 2017....Still haven’t opened it and just delete stuff. So I'll probably do the same thing with the PS5. My plan right now is to keep running the Pro anyways, so I won't be using the PS5 for BC if I hold to that.