Yes. I buy on ebooks dot com, where you can filter by the DRM-free critter. It is also a neat trick to discover new authors.

I do this absolutely out of personal opinion on the matter, and would rather buy dead-tree-and-ink than a closed version (that won't open on my e-reader anyway).

The whole - and excellent - Murderbot Diaries series is DRM-free ! I wonder what/who make the decision on that matter.