It is ridiculous what we pay in the UK - for almost everything, and I don't think that our salaries are very high either.
I try to buy my running shoes in the US and my other kit in Aldi or Lidl. I don't feel bad about playing the system if I can.
I got a pair of Asics 2110 in the US for $65 last time - that is a huge saving over what they are here, and they are exactly the same shoe as far as I can make out.