I more or less only buy digital from Bandcamp. And it's not much.
Amazon has become even more of a PITA trying to buy digital -- some digital music they offer for sale -- some only for streaming. Also it's only mp3 quality
And what with me being a very late adopter of anything, I've retreated to CDs again :-)
veering slightly off-topic: I generally buy used CD's from discogs.com (new probably from amazon).
I have recently bought a DAC (with Bluetooth) for my ageing amp. Will wait with buying a network player /streamer till I actually get my act together and rip some more of them CDs