How do high street consumer electronics stores, such as Dixons or Tandy add value to the products that they sell?

A high B grade almost A...how annoying!! Perfect in every way!! How do Dixons and Tandy add value to the products that they sell, and, in doing so, what benefits are passed on to the consumer? Do high street consumer electronics stores offer better value for money than their mail-order counterparts? The raw price figures show that, obviously, the high street stores cost more than the mail-order stores, but are the benefits that the …

…in answer to the question 'are the benefits that the high street stores bring worth the extra price?' we can say that, apart from quicker delivery and financing options available, all of the services given are pre-sales services. This means in theory you could go into a Dixons or Tandy, receive advice from them, then buy the product from a mail-order company. Thus the answer to this question is probably 'no', in most cases.