I run a lot of D&D 5E- it ranges between 6 and 11 hours each week. While during 4E I primarily used miniatures, these days I find I'm running most of my combats without. This is partly due to not having the time to find the right minis, and partly just because it speeds up sections of the game (like I don't have to be drawing a battlemat and organising minis).
I was talking to one of my friends who recently got back into D&D. In his 5E campaign, he began by using minis, but has now abandoned them.
It sort of makes me sad - I have all these lovely Dwarven Forge cavern and dungeon tiles to use, as well as many Reaper Bones and even more D&D Minis - but it's mostly working for us at present.
Cheers!