Hello, fellow Bloggers!

I have a dilemma at the moment and am looking for some opinions on the matter. I have a large pile of Codexes, because I buy a them - even if I don't ccollect the army - for fluff etc. As such I use a large amount of space to store these. As such I have been looking into getting some ebooks.
At the moment I don't own an Ipad, however I am considering buying an Ipad Mini. So what I want to know is:
1)Are Interactive codexes a good alternative to codexes.
2) Is an Ipad Mini a suitable size for reading codexes or do you need a full size Ipad.