A system released in late 2012 capable of barely matching/bettering 7-8 year old console hardware. I'll stick with my 4 year old PC which can still outperform every one of these consoles. As an added bonus the PC lets me do my job and make money. Tough decision ;-).
All that aside I wish no malice to Nintendo, I really hope they pull this off. It would be a much duller world without Nintendo making consoles and games for them. They really do try and come up with new ideas.
Yeah I don't know if I'd buy the costume pack if I didn't have it included already. Now if they added Ghengis Khan, Abraham Lincoln, Napoleon and all the others in as playable characters allowing you to make your greatest XCom squad from history, that i'd pay at least 5 bucks for :-D.