Herein lies one of the basic lessons of technology: the mass market is not concerned with "best" but with "good enough." Produce "good enough" at the optimal price to cover costs and gain some profit, and you will obtain the bulk of market share.
The problem lies in "good enough" being usually quickly copyable. Sony lost its shirt on Betamax 30 years ago because VHS was good enough, but VHS was so easily copyable that within a few years its manufacture became both mass-marketed and unprofitable. The same thing happened to RGB color televisions 50 years ago, and is happening to 'droid phones now. The curve from rising star to cash cow to unprofitable dog is steep on both sides.
and the TV sets from the early years that had better resolution than they did into the 70’s because of this same thing too.
Good summary of marketing basics that many companies lose sight of on the facts of product/profit life cycle. Failure to renew with product and market development is quite often the cause for the money running out.