I see a pattern here ... (recent kill of dpreview comes to mind). Maybe entrepreneurs should value freedom and independence more. If the owners of dpreview and Book Depository wouldn't have sold their business to amazon, then maybe both would be still around for a long time. Don't blame Amazon, blame the former owners.
Btw.: A topic in DHH's book "Rework" is the actual goal and value of a company. It is a good read.