How long will harps last? Do they appreciate in value?
I recommend purchasing harps from experienced luthiers as they are familiar with the stresses on the instrument and construct them for the best tone and strength. A folk harp should last decades if protected from temperature and humidity extremes, falls and grasping 2-year-olds! Used harps, unless they are obsolete antiques, if well-maintained will usually appreciate as the price of comparable new harps rises.