90% or more of my digital comics cost were either free or cost me about $0.75-0.80 each. At that price a lack of resale value is not an issue to me, and I get to read, legally, comics I'm interested in without shelf space being needed and no big investment if I don't like it. The comics back issues market is prety dead anyway these days (with digital and the Trade format). I'm selling my surplus physical copies at about $0.25 each in the hope of getting anything at all.