I really want to play the piano...however?

If you want one bad enough then you will pack your school lunches. Going out with your friends can also be cut down for awhile. Try to save any money you can here and there and you will probably have enough money for at least a keyboard in no time. You can't start off with something nice right away. I don't get an allowance. I am very passionate about guitar but my mom would never get me one. two years ago I sold a bunch of things and bought a cheap 65 dollar one. It is still my only acoustic and I play it everyday. Like I said, If you want it bad enough you will get it.