One of the down-sides of not upgrading is that it takes longer to get acquainted with new features than when they're at your fingertips.
It also makes it a lot harder to take advantage of those new features that you don't have.
My perception of what, if any, new features I
want to take advantage of transcends Apple's imaginary "reality" as respects what new features I
need and governs my decision whether or not to upgrade.
