Richard Horne at ATTG writes:
"How much Guitar Hero: Greatest Hits will appeal to you depends on quite a few things. Whether you've bought all of the previous Guitar Hero games - in which case probably not all that much.
How much you like the re-released tracks - this one's totally subjective and your mileage will vary.
And finally, how much you're still enjoying the genre as a whole - you'll either love the game to bits or be bracing yourself for the inevitable weary sigh."