Two words win this argument: market share.
I love Amigas. They were technical marvels combining the best features of both PCs and Macs and packed with their own unique benefits too. They're now dead for all intents and purposes.
We're not writing our software for Macs in our company because we'd like to reach the largest market in the World. When, and only when, we have enough resources and the need to access the Mac share of the market we'll do so.
Whether or not something's nice to use or even superior doesn't make it successful. That's one lesson I'm keeping close to heart when we start marketing our new product.