kimdani1 -- I think you are missing what is happening... like you have it 180 degrees off

We aren't killing these companies, we are in the middle of a huge war.
What has happened in retail is exactly what has happened in lots of non-technology fields. Look at automotive (robots paint), look at banking (ATM machines), I could go on and on. Retail is going through major technology influence, it was a "slow to change industry" -- but not any more.
HUGE profits used to be made by retailers who really didn't earn it. Sears, Wards, these were HUGE companies in the early part of 19xx century. They blew their cash on the tallest buildings of the time, they were rolling in it.
Retailing has always been a joke. Take a product, put it in a store, hand it over - collect tax, and make 30%, 50%, even more -- depending on the industry. (Jewelry and other fields are just a joke, the profits they make are so outrageous it is funny.)
But since retailers controlled the supply, what could you do?
It started in the early 80's with mail order computers, "ronco", late night TV selling records, and other things. Mainboards, hard drives, RAM, other fast changing price items... remember Computer Shopper in 1985 timeframe? It was HOT technology to have a magazine dedicated to mail order. This was a MAJOR evolution over standard retail... it saved 10%, 20%, or more over local retailers... and allowed smaller product lines to be available to the whole country.
Just-in-time inventory, other major technologies of the late 80's are at their peak right now. Let alone people like us who uses forums to compare prices, tools like pricewatch.com, etc.
I'm sure big .com's like Amazon took out more than their share of bookstores. Companies like Wal-mart who are heavily computerized drove tons of retail companies out... but they can just as easily have it happen to them.
These new retail models have benefits, but like anything "new and untested" they have flaws. Much of what we do here on these forums is take ADVANTAGE of those flaws. "Loss leader" prices and coupons, old world things intended to get you "in the store" -- are too easily used in the online world.
You are in the middle of a commerce revolution not seen since Sears first did their catalog and people could start to mail order! Historians consider that one of the most significant events in modern history! It allowed rural people access to technology that often made a HUGE difference in day to day life... water pumps for wells, medical supplies, etc.
Here we focus on good deals for stuff we like... computer products, gadgets, coffee, etc. But the impact we are making will be felt around the world... in much less sophisticated fields...
mrVW