Pianos evolved from harpsichord improvements. But soon they were something wholly different. You still need a harpsichord for harpsichord music. In this century, cars replaced horses. But cars aren't much use in rough, roadless country.
Many technologies survive their replacements that way.
Live concerts have survived recordings. Pens survive word processors. Electronic books will soon have features you never imagined in paper books. They'll have colored pictures that move, spoken words, and background music. And that's just the beginning.