One of the best investments I’ve ever made was to get an 8TB drive for my laptop. Never having to worry about disk space again is so nice. Consider it if you’re in the market for a new laptop.
I'd be worried about having all of my storage in one place. I like to back up data to more than one place if it's important, and never have huge on-device storage because if something happens to damage it, I'm assuming it's game over for all on-device storage (rather than only part of it). I'd rather my storage was safe and cozy in some place far from where my laptops go.
But if you're not all that worried and happen to do data-intensive work or something, awesome, 8TB sounds like a dream.
(1) I only need local internal storage for apps, current data, and active projects.
(2) It helps me stay honest & organized about my backup and archive strategies.