I have seen lots of slow cookers (crock pots) but am resisting that purchase until I get used to CP first, however you can bet when I want one I won't be able to find one :lolno:
If you find one of the old fashioned round crock pots that are reasonably priced, go ahead and get one. I can absolutely assure you that you WILL be needing it to rebatch some time in the very near future. I think every last one of us has had at least one rebatch. It also comes in very handy during the winter to melt solid oils and/or make liquid soap in. So, find an old one(the one I use is from 1986, and works fine for soap) that is cheap before you need to rush out and buy a new one later.