I use Bandcamp to buy releases by smaller bands who don't have their music on Spotify, and in some cases (for example the new Weigedood album) buy it there even if it is on Spotify.
I don't get to many live performances these days, due to kids and my own gigs, but if I've enjoyed the band and have the cash on me I'll buy a CD. If I didn't have the cash, odds are I'd add it to my Bandcamp wishlist for later.
I've bought 8 albums/EPs on Bandcamp over the last year, not sure how many CDs, maybe 6 or 7 and streamed hundreds of hours on Spotify.