I could definitely use a mini for work due to portability but as my primary tablet? Way too small. I'm actually surprised how many people here are claiming it to be the perfect size but we're all entitled to like what we like.
I guess, for me a tablet will never be a "primary" anything. I have a Samsung Slate 7 running Windows 8 and honestly it's too soon to call it a laptop/PC replacement. Very capable machine but not really suitable, for me, as a primary tablet. At this point tablets are complimentary devices to desktops/laptops, I understand they CAN be replacements for a good number of people but I don't see it as feasible for me. I see Windows 8 taking that spot. I have no need for a "primary" tablet though.
I am in need of a complimentary device and iOS has given me just that. Even more so with the smaller Mini and its very spacious screen. All that aside, these are luxury devices. We don't really need any of them.
Since I've had a few days with the mini, I have sold my "New" iPad and given my slate to my younger brother.
The other night I was out at a bar celebrating with friends, my boss called me in a panic to handle an issue one of my coworkers was unable to. Instead of making the trek all the way to the office, I pulled my Mini out of my bag and quickly logged onto Sharepoint, within five minutes I had edited and fixed all the issues that had arose and no one in my party had even noticed.
Could I have done the same with a full size iPad? Absolutely, but at that point if I'm using something so large I would just pull out my MBA. Could I have done so at a cramped bar table with the full size iPad? Probably. It's great to have the option between the two and for the majority of scenarios I find myself in. The mini is king.
There has to be something said for portability and a very small yet extremely efficient footprint. Especially when it comes to those who are consistently needed yet always on the go.