Same here - the old Leo cartos (both single and dual) were among the best I tried, and I still have a couple dozen of them that will unfortunately never be used. I've managed to give away a couple Leos with 510 adapters, but most people just don't seem interested. It was my first kit, and it got me off cigs, but everyone wants clearos these days.
Once a year or so I break out the old gear and make sure it's still working and the cartos still taste pretty decent... but it can't really compete with a well set up genisis, so back in the box it goes.
I did finally get someone to take my gogo, lol.
But he hasn't even tried it