GameStop offers BandFuse: Rock Legends for PlayStation 3 or Xbox 360 for $29.99. Apply coupon code "SAVER" to bag free shipping. That's $10 under our January mention and the lowest total price we've seen. (It's a price low now by at least $32.) It includes a 1/4" guitar cable and requires a real guitar (not included).
From shoes to cookware, if you're willing to pay a little more for these awesome products, you may never have to shop for another again.