as an upgrade from an ipad 1 i would go for it. It has LTE so its 4g ready, but that would mean getting a network able one which costs loads more, so if your only using it at home or where you have a wifi its not worth it.
the ipad mini has the same spec barr a higher dots per inch screen. i would head to an apple store and get a feel for both.
Ooh I have not heard about this. Is this the new iPad (5th generation?).
I too have an iPad 1. It is reaching the end of its useful life. DS has a 3 and DD the 4th gen. They are so much lighter and faster, plus of course I've never had a camera on mine. Am going to have a look at them.