Honestly, the streaming way is less bothersome and with almost immediate results, so there's a lot of beauty in it.
I am a picky bastard so I want to make sure I'll be able to watch everything in 4K, without waits nor interruptions. Plus I watch a lot of old stuff that takes a while to get: American Gothic took me 6 months to get, I tried getting the DVD set first but realized the latter episodes weren't included.