OSX isn't released once a year. With the exception of the just-announced Mountain Lion, it has received major updates every two years since 2003. It also gets "

OSX isn't released once a year. With the exception of the just-announced Mountain Lion, it has received major updates every two years since 2003. It also gets "service packs" in the form of point releases every couple of months. $29.99 still seems like a great deal to me.