I'm not a big fan of sweet foods in general. If I experimented with them in more savory dishes, I would probably like them more. I have seen a handful of varieties, but not where I am now. Most of the variety was in California. All it would take is just one or two to grow for slips. Once you get your big house built, you could grown them indoors on a south facing window. Maybe you could even make a small insulated cold frame for them.