There is a recent long thread addressing the same question you have asked that you should likely review:
https://www.disboards.com/threads/to-owners-locker-or-not-does-the-cost-make-sense.3844886/
I have two owners lockers, although one of them is actually for storing a set of golf clubs that I use for trips to WDW, which occur usually about 3 times a year. I highly recommend it, and see my post in the prior thread as to why. When you are going to WDW, it delivers your locker to your arrival resort's Bell Services. At the end of your trip, It picks it up at Bell Services at the resort you designate as the pick-up resort, which can be different from the one you use when you arrive.