I recently bought a Yamaha NPV60(piaggero) keyboard .It cost $300 .The piano is decent for alot of music but i discovered that for medium loud notes it only sustains about 3 seconds.A real piano goes about 6 seconds.The piano sample would need more megabytes I think for a longer sustain .The same would go for other sounds also.These days megabytes are cheap so I don't know why they can't make at least their keyboard sounds like piano,electric piano,celeste,etc.have a longer sustain.I told yamaha and they said it has to do with wave ROM ,which I think is the same as number of megabytes , and they suggested 2 more models.I said I wouldn't mind paying a little more for a better sustain.When I checked their suggestions I found out they were refering to keyboards costing $1000! That isn't what I had in mind when I said I would pay a little more.I figure for the relatively small amount of extra mb. it should only cost maybe $25 more then one would have quite a few much better expressive keyboard sounds.I have a feeling they should have done that years ago and the reason they don't is that they know you will have to pay a LOT more money(their profit) to get a piano that sustains like a real one.I want to see how many other people agree.It might be a tacit conspiracy involving all the companies that manufacture these keyboards to get yu to buy the expensive ones.What do yu think?There are some other things I think they do also to try to get you to pay more.One is not having a volume pedal output. I just got done spending almost $100 to install a volume pedal for the NPV60.The pedal,cables,adapters for the plugs,and the AC adapter needed that plugs into the pedal cost me about $100! Another is programming many or most voices to have a limited dynamic range(loudest to softest tones).There are some voices on my NPV60 that have a great dynamic range ,but very few, so I don't see why the other voices can't.I think many people prbly agree.One would think if I'm right about what I've been saying that someone would have started their own company and do it the way I suggested.To do that would cost a fortune and the existing companies would likely do all they could to stop such a company from existing.I imagine such a company could have far nicer keyboards in the $300 range and the expensive work stations might cost only 2/3 or less then what one pays now for them.They wouldn't make as much money as the exising companies but the people would be happier.Ha.Ho I hope to get some replies. Thank you. .