Should have emailed me. :)
06-26-06: Cdc
I've used rollerblocks and did not like the sound. No one wanted to buy them from me so I guess they are not a popular item.
You might have experienced a lack of interest depending on when you tried to sell them. Now is not a good time. In any case, don't assume that because you did not sell yours that they are not a popular item. I've seen periods where several sets have sold within a few weeks of being listed.