I guess I will buy 20-25 games this generation, do you think a 1TB PS4 is enough? 

Honestly, 500GB is enough for me because I only play a few games at a time and when I'm done with them I delete them.

Why would you buy so few games?

Not unless you wanna uninstall. My 500gb for my PS4 and XB1 are almost spent and I haven't even begun buying the big games, yet. Space is gonna be an issue.

I'll probably end up with about 10TB of digital games for PS4. Considering I already have 1TB of PS3 games and not done buying digital for it yet. Silly Sony not supporting external HDDs is making me stingy when it comes to buying more digital. I'm at 2TB now for 360. Xbone has a 5TB external at 14% full. 

^This

Stop recording sexy videos of yourself and sending it to Random people through your consoles!!

Lol no, if you're going digital (why would you buy a 1TB PS4 if you're not?) Then you're gonna run out, unless you buy few games.

No, but you can go without. PS4 installs games super quickly so if you delete one then feel like playing it again you're waiting 2 minutes tops.

I have a feeling that by the end of the gen we will look back on 500g the way we did when the starter consoles last gen had 40-60g.