Just popped into my local HMV looking for Guitar Hero or Rock bAnd on the cheap. Found this on offer at £33. Thought it was a pretty good deal as most other retailers are over £50 at present, which compared to GH5 guitar bundle doesn't seem very good value. Now I have enough left over to get the GH5 software and get two games for the price of the new one!!
This was available for all formats. They also had the Band version for £89.99.