The only things there more than two years old are the MBP non-Retina, which is essentially an obsolete line, and the Mac pro, which Apple has never seemed massively invested in.
Retina MacBook Pro: 491 days since last release
Mac Pro: 1007 days since last release
Macbook Pro: 1563 days since last release
Mac Mini: 706 days since last release
Macbook Air: 562 days since last release
To be fair, the non-retina Macbook Pro and Macbook Air should be removed from the list as their place in the product line is now occupied by the Retina Macbook Pro and Macbook respectively.
That still leaves us with some pretty major product lines looking quite neglected.
Huh? I mentioned the Macbook Pro and Mac Pro. All the others fall in my "less than two years old" segment.
Similar with the iMac - at 344, already beyond the average (which was only pulled way out of whack by one 577 day refresh cycle, otherwise it would have been in the 270 day range.
MacBook Air. Average of 350 days, now seven months more...
Mac Mini, similar.
There isn't any way that you can spin this in a way that says Apple isn't neglecting the Mac.
You're right, they seem entirely disinterested. They tossed it over the fence three years ago.
And to rub salt in the wound they still charge the same price now as the did at launch for Ivy Bridge processors!
I would choose an iPhone 6 over any Jobs era phone.