"Because Mac has so few users, that there are few hackers willing to waste their time bothering with it."
Total garbage. Mac OS X is UNIX. Its more secure, and thus more difficult for malicious coders to infect. Windows is junk and its security is a joke. Thats why its easy to infect. OS X is inherently superior. Its high security has nothing to do with how many people use it.
If the sales numbers were reversed concerning Mac and PC there would be no viruses? LOL
Get a grip pal, the small market share has alot to do with it.