Well honestly, I would be interested in an iPad mini.
If I were in the market for an iPad (only getting one cause I'm getting my mom's iPad 2 hand me down and I'm just excited about that) and I hadn't caved and bought the "new" one (or 2012 one), I probably would definitely consider the smaller iPad (it's more what I want cause i want a glorified book reader and the iPad is a bit big for a good book reader). I might hold out for it even (Depending on how badly I wanted an iPad, I'm not a very patient person. But, honestly, an iPad hasn't been on my biggest want list. Even if I had the money for it I think I could hold off until the one I want came out).
But, if I already bought the new iPad, I'm not going to buy another one just cause it's smaller, I'd just make do with what I have. Just like right now since I'm getting an iPad 2 from my mom, even if they release this smaller one that is more what I want, I'll just use what I have already (but it does help that I'm on a tight budget).
Besides, maybe after I use the iPad I'll get over the seems large for an ebook reader. Basically my biggest beef with the iPad size is I want to be able to hold it one handed easily. Which after playing with the ones in the store I find I can do for a short bit but my wrist does eventually get tired. But the size/taper really does help on that, didn't think shape would help so much even with weight in making something big decently holdable in one hand.
I know my roommate though, who doesn't have a tight budget like me, has actually been wanting an iPad but he's holding out cause the size just won't work for what he wants (but it has the apps he wants for use in his plane). So I know of at least one person who won't buy the current iPad cause it's just too big for his purposes (and for him it has nothing to do with price).