Try it...order the mini and see what happens.
I waltzed in to the Chicago Michigan Ave store last Thursday hoping to skip out with a mini, but they were out. They said that they might have some in a week or two, but they would be gone 1 minute after they opened the doors in the morning. They tried to talk me into a 15GB, and they did, and I love it, of course. But they really seemed to be pushing the 15s. There were stacks of then behind the register. Immediately, I thought they're trying to liquidate that model to make way for the new bumped versions due out in the next few months or whatever.
Or, maybe I've watched to many Michael Moore movies and think everything is a damned conspiracy... not quite sure.
I'd say get the mini and spend the money you saved on some Shure E3c earbuds ($179.00)...MAN those iPod headphones suck.