Perhaps it's just because of where I currently live (NYC), but I sure see a lot of iPad minis in the wild -- so much so that I've considered getting one myself because of the nice form factor.
I used to have an iPad 3, and enjoyed it, but an iPad mini would better suit my everyday needs without the "need" to carry an iPhone 6 Plus. iPhone 6 -> iPad mini -> 13" MBA is a great trio for me. I'm sure I am not the only one that feels this way...
iP6--->iPad Air--->15" MBP = works for me