If you're planning to go whole hog on Monster Hunter 3 Ultimate and get both the Wii U and 3DS versions to take advantage of the cross-play features, here's an offer you may want. Amazon is giving a discount of $20 when both games are purchased on the same order, which ought to take some of the sting out of buying the same game twice.
I wonder how many people are now canceling their existing pre-orders. It's essentially the same as buying the Wii U version and getting a copy on 3DS for half off, after all. I've been led to understand similar propositions have been quite popular with people who buy things.
MH3U pre-order deal from Amazon saves you $20 [Capcom-Unity]