Really needs that extra £55 to be competitive though, i just did a quote and it offered me £38 for my day one X1 with Kinect!
Absolutely, if it's something old and generally of little value though it seems worth it. I'd be lucky to get £30 for my 360 S at Game on trade-in, and if I sold it via the MM I'd be stuck for postage costs. This is by far the best amount I'll get for it!