I started buying UHDs (mostly Criterions) recently. I mostly don’t like owning too many things (and even buy most of my 4Ks on iTunes when they go on sale for $5) but for some films the extra quality is worth it (plus you can’t get the Criterions films in 4K anywhere else, and I like having the access to the features).

I always am wondering if I’ll regret it in 10 years when you may be able to stream super high bitrates, but as always, the future is uncertain anyways.