I don't do enough to have to reuse it. I think it would drive me crazy to piece them together.
I have though used the sticky back stabilizer and "patched" a hole when I did some diaper/burp clothes so I could just keep using the hoop set up I had going.
My very loving hubby thought I need a roll of this and a roll of that so I have more than enough rolls at this point ...and not just of stabilizer either speaking of rolls