I'm planning to Pre-Order Monster Hunter Tri 3 for Wii but I also heard that there is a new Trade-In offer that if I trade-in Mario sluggers I could save $25.00 dollars on any new game $29.99 or more. Can I do both or I not which one should I do. When I Pre-Order I get 500 wii points (because of its in game online or DLC) and $5.00 off.