I said "the average user", not "all Mac users". It's the same thing with PCs - the 90% of people who aren't experts or ninjas or developers are web-itunes-facebook-email people. You may not know many of them, but that's a result of your professional and social circles.

Apple doesn't sell millions of computers every quarter to Rails developers, it sells them to 90%-ers. Sure, some developers buy them, but they're not the main market.