I don't, and sometimes I wonder why I still buy CDs.
I guess it's habit, wanting to actually OWN something, to read the booklet, to enjoy the work of art as it was intended by the band.... but really there isn't any valid reason why I should buy CDs.
A reason there was until 2018, I had an old car that still had a CD player, but with the new one I have the mp3 player (there isn't even a CD slot) so since I listen to music in the car, on my computer and on my muuuusic plaaayeeeer, I really have no need to buy CDs.
I guess it's a force of habit and wanting the actual sensation to OWN something, if they would sell you along the mp3 files when you purchase them a full digital booklet in PDF I could consider not buying a CD, but until then, it feels impersonal to buy mp3 files.