Good point, Fred! I like to browse Craigslist for nearby cities, and am often amazed to see some people listing an 11-year old model (e.g., Yamaha PSR-E303/YPT-300) for the same price as its latest incarnation (e.g., Yamaha PSR-E353), despite the fact that the latest model has more voices, styles, and other features than the old model. In some cases the price might be justified by the inclusion of additional accessories-- e.g., a stand, a dust cover, a sustain pedal, music books, etc. But I've seen people list a PSR-E203/YPT-200 (probably priced at around $100 when it was brand new 11 years ago) for the price of a new PSR-E443 ($250), which is crazy.