Well, I'm assuming they could still catalogue shop, but they certainly would not have available to them the wide variety of goods and services that are only a click away today.
So, OK: I just finished a bit of an on-line shopping spree. It saves me the time, trouble and gas needed to make the trip to the mall (actually two separate malls, as I ordered from JC Penney and Sephora; Sephora is only at Mayfair, and Penney's is only at Southridge and Brookfield Square). I used the catalogues I receive (JCP must kill millions of trees per year) to make my choices; five minutes later, everything was on order and I have the confirmation numbers I need to track everything. Free shipping and delivery to my door - it doesn't get much better than that.