Repeating myself

"Specifications subject to change" does not exempt a company from providing the features it advertised to induce people to buy the keyboard (or other product). If it did, Yamaha could put a toaster in the PSR-2000 box and claim they just changed the specifications. Maybe the production model is going to weight a little more than the preliminary spec. sheet indicates, or maybe the processor is a little slower or faster, etc. But "SSTC" does not mean that Scott Yee should pay $140 to upgrade the operating system for a keyboard that is advertised as having a "flash upgradeable" operating system.

Furthermore, Yamaha's "case" is not summarized by this phrase--because Yamaha acknowledges they need to basically repair some units for free. But for economic reasons they do not want to fix all the keyboards that need fixing. So they have a "test": if you can articulate the problem the repair is intended to fix, you get the repair for free. If you cannot guess the problem (but are only getting a repair because others are doing it) you have to pay for it. Now this approach probably worked ok BI (before the Internet), but nowadays, it is a recipe for massive dissatisfaction.