dan has mentioned it on numerous occasions that the outlay is not reflected in a boost in sales, and that's when thrashes were common place
i can't remember where he said it but he once gave us a full list of all the health and safety stuff which was quite ridiculous because it covered things like wearing a hi vis while drinking cups of tea in the cafe or something stupid like that so you can just imagine someone in a suit saying "hmm, it's going to cost me £x and in return i'll get £y so i shan't bother"