Grab Rocksmith 2014 Edition (Cable Included) (Xbox 360/PS3/PC) for $39.99 (Reg. $79.99) at Amazon!
Rocksmith 2014 Edition teaches you fast and effectively by letting you plug any real guitar or bass*. Rocksmith becomes your personal teacher as it monitors how you play, dynamically adjusts the difficulty to your skill level, then slowly introduces more notes and phrases until you're playing your favorite songs note-for-note. *Requires 1/4" output jack - cable included.
Check it out: Rocksmith 2014 Edition (Cable Included)