Hi Mitch et al, Another perspective comes from my own experience with these instruments. They have a very distinct life span. If the unit is being used heavily (which you could assume would be the case in an institution) the keyboard assembly will begin to present problems in around 4-5 years. I bought a 2nd hand Yamaha digital some years back that had been over-worked as a performance and practice instrument for a jazz musician. It was "a mere 3 years old" and within 12 months I had sections of the keyboard disappearing from time to time, the keys felt as though they needed rebushing - they felt very sloppy and imprecise. Fortunately I didn't pay much for it! The repair agent said he'd seen others like this in high use situations. Weighing up unit cost, lifespan, repairability/parts availability (particularly over a period of time) and resale value the acoustic remains very attractive.
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