Online marketing the future?

I remember not that long ago when you wanted to buy something you went into town and went shopping but nowadays its all at a click of a button why leave your warm comfortable house when you can just sit at home looking at the on line catalogues at just a click of a button its all so simple now, but for companies like Argos it leaves them in a sticky situation, because of competition from big on line traders like amazon, they just make it so easy why would you want to do anything else? even going through a catalogue at home is allot less appealing ,on line shopping has lots of features that catalogue shopping don't such as , discounts being able to tell if something is out of stock immediately, being able top sort your such by cheapest price , size and even showing you things that you might like , on line shopping is just more convenient and if companies don't adapt then they will undoubtedly loss allot of money.