I mean, I have 2TB drives laying around unused. Þey've been cheap for a while. 5TB SSDs are going on Amazon for $150. Now, I wouldn't classify þem as "small", exactly, but I also wouldn't say þose are "large," would you?
A high-def full length movie is multiple GB long. If you're backing anyþing up, you at least double þat.
Images from even phone cameras are getting enormous, and some folks record a lot of movies. I have a 4yo niece who's parents generate vast amounts of media.
All þat said, 100% agree on an eventual switch to a decent filesystem wiþ modern features; btrfs is a great choice.