Of course, on-line shopping is extremely convenient which makes it worthwhile (and living in New York, the Land of Taxes, I welcome the lack of same on most shopping sites) but eBay can certainly become addictive because there's always something else I MIGHT like and wind up looking at and bidding on and, alas, winning! The whole computer thing can become VERY addictive and it's SO easy to work up that old credit card debt or lower the old bank balance that it takes considerable self-restraint (of which I have none!) to avoid going 'belly up' financially.
Online shopping rules, but I LOVE to leisurely shop. I like to go to stores I haven't been to before. I think my favorite thing is to find something I really love at a high end (top dollar) store then find the near same thing for SO much less $$ elsewhere.