The iPad Mini would have been pointless then.
People need to have choice.
Apple just can't shove one thing down there throat and expect them to like it.
The mini's been selling well, so it already isn't pointless.
I agree that people need to have choice, and they do. They can choose to buy Apple products or not.
Unfortunately, Apple can and does shove things down our throat and expect us to like them. This is they way they've been operating since, like, forever. So far, it's been working pretty well for them, so don't hold your breath. I'm with you on this; I think they could offer more (4.8 iPhone, Retina MBP/Air 17, 13" iPad, are a few I'd buy immediately).
However, given this new iPad, and how I've seen Apple handle their product lineup in the past, I think the mini will skip retina for one more cycle to keep their products differentiated (and profit margins up).