Do You Want Paper or Electronic with That Curriculum?

I am indebted to Blossom at North Laurel School for her meritorious efforts in cataloging all (or almost all) the Ambleside Online curricula that is available for use on the Kindle. At the turn of the year I always find myself re-evaluating our schooling and looking ahead to the next grade (I say singular "grade" because we are in this .02% of homeschool families with only one student). The thought of curriculum fairs--an excuse for shopping with the girls--fills my head and urges me onward through the dark days of winter (of which in truth I don't mind because they give me an excuse to go to bed earlier and sleep in later).
    Last year I had the notion, with that partly-Scottish blood kicking in, to do a side-by-side economic analysis of the cost of "paper" books vs. e-books to determine if I would be doing our budget a service by investing in a Kindle rather than obtaining curricula in the usual format. Alas, I could not justify it: too few books for AO Year 3 were downloadable. ("Tell Amazon you would like to see this book available for the Kindle!" the searches would always chirp.) It IS possible that my somewhat limited (zero) understanding of the Kindle's Wi-Fi capabilities, which would allow for accessing public domain books online from sources such as Project Gutenburg   , misled my calculations. Or whether that generation of Kindle had even been rolled out yet. It's hard to keep up. They change faster than hemlines on Paris runways.
    So I donated plenty of bread to well-deserving Mom-and-Pop curriculum dealers, especially the USED curriculum dealers. (Score one for the tight-fisted Scots.)
    But now, Blossom's blog convinces me that I've hit the break-even point! (Oh, joy, a toy!) And then she points us to another Jimmie "I'm-a-Homeschool-Mom-with-30-Hours-in-My-Day"  lens on Squidoo.com (love you, Jimmie) that not only gives us all HER reasons for buying--ready?--not one but TWO Kindles, Hers and Little Hers, but includes a video from Simply Charlotte Mason.com comparing the different e-book readers including the iPad. 
   Ok, now I'm really in trouble because NOW I have to decide if it's wiser to buy the iPad for a "little" more and get all its bells and whistles or go with the e-reader because I could sorta trust MeiWei with it. Great. I love decision-making.
    What would you choose?