In reply to Euan McKendrick:
Awesome Walls is incredibly commercially competitive - indeed, I suspect the second Big Rock centre in MK may at least in part have been to prevent them coming in. I doubt they would let it fail.
Also AW is in Stockport, not Manchester. It isn't very far, but in big cities travel takes time so adding half an hour's drive or an hour on public transport does eat part of your evening! I am a bit more surprised AW didn't kill Rope Race though, as that's much closer to Stockport and a small business.