The electronic keyboard is not a piano, but it can be a wonderful musical instrument. If you use the keyboard for the things it does best, and don't try to simulate a real piano, it can be a fabulous learning and performing instrument.
Here's an example of a piece that is quite lovely on the keyboard. There is a version of Air on a G string for solo piano, but a piano cannot sustain long chords the way an orchestra can do. It's a different piece, for sure, but nice to play and listen to: