For those who've owned the game more than a month, would you say you are still pretty into this game? Is it still fun to pick up & play? I haven't played MK since Sega, but picked it up today at BestBuy for $40. I haven't opened it yet, because now I'm wondering if I will just get sick of it in a few weeks. It was an impulse buy, I do that every now & then with games.