In this case, I think the market "chose right" - and the reason that the cheaper options won is because they were just better for the customer, better upgradability, better compatibility, and better competition among companies inside the ecosystems.
One of the most egregious things I point to when discussing SGI/Sun is how they were both so incredibly resistant to something as simple as the ATX/EATX standard for motherboard form factors. They just had to push their own form factors (which could vary widely from product to product) and allowed almost zero interoperability. This is just one small example but the attitude permeated both companies to the extent that it basically killed them.