I still do the basement thing here in New England. I always intended to add temp control but it’s just worked out so I never bothered. I have an especially deep cellar that is in the sixties late September through May, with a few degrees variance between spots so I can check temps and choose. I can even do lager temps in my root cellar January through March. I occasionally cold crash outside.
What will eventually get me to go to controlling temps is the desire to make lagers for summer.
I use plastic fermenters but am considering getting a couple of ten gallon corny kegs to ferment in.