I have a friend whose second career is to go over to England and buy (or scavenge) up all the R20's he can find, fill a shipping container with them, ship it to Houston and sell them on Ebay. He figures he can clear $20,000 a load. I say go for it! And while he's at it, I told him he should fill another container with F-frame Moultons, which seem to be really cheap and available in the 'Isles, but rarer than hen's teeth here.