The sander was supposed to be ready for pick up on Thursday. Still hadn't heard, so today I called the shop. They explained more was broken than they anticipated, and they are waiting for parts to come in. And "we'll call you when it's ready."
That line is such a bummer. No expectation of when it will be ready. Just whenever. I'm so excited to wait even longer for the sander.
Luckily, we've been able to spend the would-be-lost home improvement time in the backyard. So there: the silver lining.