This sounds right, and also the marketing of Android is misleading and hardware focused which leads to false comparisons.

"Look the camera has more megapixels than an iPhone!"

Yeah ok, but the stock camera software outputs photos that look worse than an entry level iPhone.

True, cost is also a motivating factor that is much more powerful than fragmentation concerns. This is probably why Windows is now essentially free or at least a hidden cost for the end user.

Snobbish ones would probably do.