Even with the canadian exchange rate & customs, 7 can't cost that much. You have to understand that with the FX sets, you get 52 episodes, 1 half hour movie, & a 4 episode OVA. As for whether you like it or not, YOU WILL LISTEN TO BASARA'S SONG!
My advice, pick up the AnimEigo box set first, and then get 7, and Zero too.