Jan Dawson at Tech.pinions on Mac power users:
If we put these numbers together, we get a picture of 8–13 million users of Adobe’s creative products and another 13 million or so Apple developers. Of course, of those Adobe users, a good chunk will be using Windows versions rather than Mac versions. At the absolute outside, though, it gives, at most, around 25 million total users in the two buckets that have been most vocal about the MacBook Pro changes, out of a total base of around 90 million, or around 28%. Realistically, that number is probably quite a bit smaller, perhaps around 15–20% of the total. Of these, not all will share the concerns of those who have been so outspoken in the past week. To look at it another way, Apple sold 18.5 million Macs in the past year, which might end up being roughly the same as the combined number of creative professionals and developers in the base.