Everyone in retail is doing that - usually successfully, more or less. John Lewis, Debenhams, Sainsburys, Tesco, and ASDA all have pretty much the same click-and-collect or buy-and-deliver model.

A few - Maplin and maybe Argos - have a super-fast same-day delivery option, which is an interesting development. I'm guessing we'll see more of that in the future.

The big question now is - what is mall/high street retail for? It used to be the only way to buy, but when online is cheaper the rationale for spending metric crap tons of money on store rentals in prime locations is getting less and less obvious.

It's not just electronics. All retail is suffering.

There may be a niche for speedy delivery, installation and set-up of consumer electronics and white goods, because no one does an all-in-one like that, and usually you have to wait too long, especially for big items.

But I wouldn't want to try it without crunching a full business plan.