I can count at least one imac, one macbook air and one iphone directly attributable to me. That's to my parents and a frugal friend who normally doesn't buy expensive things.

In my parents' case I simply couldn't provide them tech support since I switched to mac. So they switched over.

And then indirectly lots of clients and people in cafes have seen me using a mac, an iphone or an ipad. I'm sure that's contributed. And I doubt that's an unusual amount for the typical pro user.