My advice is to shop around for them. A local shop where I live is selling some at £5.99 each, but if I go to another town (and I do twice a week), I can get these same ones for and I kid you not, £1.00 each. One day, I am going to get some in bulk for a £1 each, set up a stall on the local market for our Railway Group and sell them at just £2.99 each, with the profit going into our funds.