I have a whole set of Remo silent stroke heads on my kit. I love them for what they are. I can practice any time I want, playing as hard as I want. I really don't like my neighbors hearing me practice, so they work great for me.
I have sold 3 or 4 used Remo Silentstroke heads on Ebay for drum sizes I no longer own. On account of the mesh "give", they don't tend to dent or mark too much so assuming you price them reasonably they will sell. People are possibly wanting to try one out before investing in a full set.