For me, storing the 70A demands a reasonably level location. I found that if I just park the loader anywhere, when I go to mount it up again I have a heck of a time getting it to seat properly. I always park mine under a shed when not in use. During the winter months, I keep the loader on all of the time as I use it quite frequently even then.
I've thought if I were to buy a snow blower for my 855, I could leave the mounting bracket on the frame while also having the loader on. Take the loader off and attach the blower as needed.