Because the temperature and humidity swing so wildly in our shed (chapel), the piano goes out of tune very quickly.  For me it is not a huge issue because I cannot hear the difference, but for a musical person it drives them crazy.  We have decided to start looking for a good used electric piano. It seems that one of the Yamaha Clavinova (or equivalent) would serve us well. If you know of a good electric piano, please contact us.  We have budgeted $800 for this project.