I saw these going up in price as NLA and thought I would cash in and sell mine on Ebay - they made 30 quid last year; about what I paid for them.......! 
Not sour grapes but I think clear lenses on minis are a bit passé now - a bit noughties, think bootcut jeans; now if someone could develop red lenses that showed amber indicators (and preferably with a smaller reverse light) a bit more on trend I would say and I'd be in.
Just to show I wasn't immune, I had jewel lenses on one mini and "ordinary clear" on the other so I was also caught up with the fashion not saying it wasn't a thing back then and not saying I wasn't trying to be on trend - both on standard amber-red-clear now (and I got rid of my bootcut jeans a few years back also !)
Also to show I'm not a total purist, my new project has grey smoked lenses......so there you go - no idea where I'd get a replacement if I break one though?