I carried a spare keyboard, a duplicate PSR 3000, in the van for 10 years - It never came out of the case. When I purchased the S950, I ended up giving my primary 3000 to my son. I still have the other 3000, sitting in the office beneath a dust cover.

Total failures of a modern, arranger keyboard are as rare as hen's teeth. The only failures I ever seen were keypad and power supply failures. I always carried a spare power supply and still have a couple sets of keypads.

If you carry a single keyboard, no backup board, at least carry a netbook or laptop so you can DJ in the event of a keyboard failure at a planned event such as a wedding or large, private party. For NH jobs, the AD will usually be more than happy to reschedule the job for a later date.

Good luck,

Gary