I don't think I'm a typical tech consumer, but I think consumers like me are pretty important to Apple's success in the last decade.
I've had pretty much Apple everything for a little over a decade. My Macs are always bought infrequently. I've had four iPhones, three Apple TVs, and two iPads in the time I'm on one Cinema Display. I've had three iPhones in the time I've had my current MacBook Pro. Ten percent of sales, sure.
But here's the deal: I'm about to buy a laptop that isn't a Mac. When I do, I'll probably stop updating all my other Apple products too. I had a Mac first, and even today, I buy all those other things because of how nicely they integrate with a Mac. The Mac anchors all my other Apple products, and frankly, I anchor the tech purchasing decisions of a lot of my friends and family.