I find these comparisons ridiculous. Size has nothing to do with it. I think you wanted to say Apple's user base.for a company Apple's size, AVP is not a home-run
When you compare Apple to Apple, yes it's bad.
When you compare Apple against the rest of the world, they've created a really successful product.
If I create a product and sell 500,000 during its first 6 months of existence, I will definitely think I hit a home-run.
This is just the 1st-gen. If they make a 2nd or 3rd gen and make it cheaper, the Vision Pro Division at Apple will be a Fortune 500 company by itself, just like AirPods.