It means too low quality for current customers, but good enough for non-consumers to become customers. PCs were not good enough for minicomputer users, but it

It means too low quality for current customers, but good enough for non-consumers to become customers. PCs were not good enough for minicomputer users, but it was a lot better than pencil and paper and slide-rules. They cost thousands of dollars, but minicomputers were tens of thousands of dollars.