Yes, I definitely would.
I use Steam, Humble Bundle and GOG for games.
I use http://bandcamp.com/ for music
If I can find a DRM free source for Movies and Television, I'd never need to "acquire" anything again. GOG's prices are a little high ($6 would be the most I'd pay for most movies) but provided they do sales where they slash prices 50% or more, I'd buy movies through them.