Five copies! I hope you have fun buying them. Are you going to pre-order all five? If you buy them all on release day, buy them one at a time, at the same store, from the same shop assistant, pretending to have no knowledge of any previous transactions. You know, like introduce yourself and ask if it's in stock each time. Then, take each copy you buy and add it to a "card tower" that's in plain sight of the counter.
I will buy one copy -- maybe two. I have a few friends that like Guitar Hero and will probably go BALLISTIC over this.