Re: What do you expect?
I don't think you understand (or possibly care) how expensive it is to run a shop. The shops still need all the warehousing, warehouse staff, online admin, IT, management etc that online only businesses use as they also have an online presence.
On top of that there are also business rates, rent, staff costs, utilities, maintenance...
Do you seriously propose funding that from the 10p margin per low end HDMI lead they'd receive over the online businesses, with an additional 2% margin?
Yes, the margin on some Maplin products is excessive, but you need to be realistic.