It's crazy how many people I know these days that own a Mac or are thinking of it.
When I started working where I currently am just under four years back, there was one person left on the department who used a Mac at home (few others had recently left). Especially since Intel and Leopard I can now count about 10, many of which it is their primary system.
It's also mildly amusing when I see the look on some customers' faces when they have a problem with Vista and I tell them "Wouldn't know the solution, I use a Mac." They come in with a problem and who they consider an expert tells them they use something different, followed by one or more colleague agreeing, they begin to feel annoyed that they said "they cost too much" when buying it.