Are Mac users smarter? Some interesting stats seem to indicate this:

Nielsen/NetRatings said that 70.2 percent of Mac users online have a college degree, compared with 54.2 percent of all Web surfers. That, combined with their longer surfing histories and their greater willingness to buy products via the Web, makes Mac consumers a prime catch for marketers…

Also interesting is the number of home users using a Mac:

Although Apple sales typically represent less than 5 percent of the
overall U.S. personal computer market, 8.2 percent of Americans who
surf the Web at home do so using a Mac, according to the study.

This makes me think that while Windows dominates in the workplace, consumers, given a choice, will pick a Mac more often than you would think.

Read more at: CNET