Streaming Music is Ripping You Off; Fight back with this simple hack

I always try to buy as direct from the artist as possible. In the case of many synthwave artists like Droid Bishop it seems Bandcamp is the most direct way and they get a good chunk of the money from the purchase as opposed to other avenues like iTunes. So, I always suggest to people to see if the artist in question has a Bandcamp or equivalent account on a site where they can get the majority of the money from the purchase. Otherwise, buy a CD as you state or even some merchandise when they're on tour since they get quite a bit of the money from that as well.

"I always thought it was (roughly) general knowledge that artists make their money from going on tour"

It's roughly not because that's not how it used to be. Money from tours is something that started to become the trend since (I'd say) mid eighties.