Well, to tell you the truth, I pulled that out of my ass. I have no idea if the Homepod is selling well. I am basing this on the fact that Apple allows employees a 50% discount, something they do not do for any other product other than the Apple Watch (as far as I know or can tell). This, in addition to the litany of poor reviews, leads me to believe the Homepod isn't doing so well. I can't be sure, though.

It's not out of stock everywhere with 4 week waiting times to ship ;)