they sell the sandwiches for about �3
packaging costs, probably about 30 - 40p per packet
actual food costs about �1 - �1.20 (at a guess although it is probably way less for both)
so, profit margin = 100%
you get about 27 slices of bread in a loaf, so you're talking bread from the sandwiches costing at retail to hit the same profit at about �15 a loaf but they wouldnt be able to sell a loaf for this, your talking around the �1 mark
plus the supermarkets probably dont have access to the ingredients, the sandwiches are provided by another company altogether, tescos/sainsburys etc will have gone through health and hygene reports for the supplying company and made sure they are a reputable supplier but nothing indepth to ingredients.. so theyd have to find a bread supplier that made a similar product, and none of warbatons hovis etc have taken the risk of making anything this adventurous for the consumer market
so basicly, tehy want you to buy the expencive sandwiches, instead of buying the ingredients to make them yourselves
there are a few ingredients you wouldnt be able to copy anyway,
ever tried cooking bacon the way it is in those sandwiches? its far from easy, youd have to buy a pack of pre-cooked sandwich bacon (i think sainsburys sell this) and it costs about �5 a pack......