Make them think long time development, not rapid ROI. What makes the difference between CASIO and the other right now, is not the product, but the renown (other have and you don't). It takes time to build. After sale services, spare parts, warranty, product availability, geographice presence. This is what you should consider. I just bought a PRIVIA PX-350 PACK for 900+ euros. I feel like I took a risk buying a CASIO. (This is what you should work on). For the same price, I was considering a YAMAHA or KAWAI. I would had less for more. I bought the PX-350 because I've now a good a keybed and piano samples, and some nices addon (rhythm, presets,usb,etc) I also have an 'old' CTK-591 i bought used and still working like a charm, so I know CASIO can make long lasting items. Anyway back to the subject What makes Casio so important in your life-> I spend (and spent) most of my spare time on a CASIO keyboard Aymeric