You're talking about it all from a buyers point of view, NOT from an employment point of view. The Internet is without a shadow of a doubt a boon to customers. By and large it is NOT a boon to retailers, as is evident in the rampant deflation of prices. Profit margins used to be 60% on electronics. Now a retailer is lucky to make 20% on a $400 TV set that only a few short years ago sold for $1300. At 60% a business could expand, hire more workers, etc. At 20% it takes out even big retailers like Circuit City. It's all a race to the bottom with no end in sight. Again, yeah times change and businesses have to adapt or die, but the end result will be literally a handful of mega corporations holding vast monopolies on retail with only a skeleton crew of employees.
"This is where we live, Shelly!"