Some low price keyboards are so bad that they might not properly convey the fun of piano because of their limited function and make you think you don't like it. You've gotta make sure that what you buy gives you an accurate picture of what it is like to play a quality instrument because a crappy instrument is not fun.

For example I bought a $200 keyboard once because I thought it would lighten my load as a gigging pianist. Nice and light, 88 keys, built in speaker. Much better than lugging around my thousands of dollars of pro gear. But when I got it, it didn't have weighted keys, ok not fun but I can deal with that, but then it didn't have velocity sensitivity... Every note was just on/off. This was a deal breaker, it is strait up not fun to play a piano like that. I mean it's in the name Piano/Forte the instrument that can play loud and soft.