I recently started playing piano by ear and I'm really enjoying it. I'm picking it up pretty quick so I'm kind of riding this wave of excitement and I want to get something that sounds good. I have a limited budget of about $250 but because I'm an impulsive 20-something american I need it now! I need to play everyday. Right now I'm playing a Casio CTK-50 which is basically a toy. I really want the weight of real keys and I want it to be louder if I am hitting the keys harder. I guess what i'm thinking of is called an electric piano. My goal is just to play for fun but I do live in a house of musicians and I could see myself booking a gig in a piano style rock band, so I want something portable. Ever since I realized I could get craigslist on my phone I can't stop looking at every city within driving distance so I am sure if you suggest something that's double my price range I'll eventually find it used for half the price in the store.
I'm american I'm not going to some commie community center. I need to buy something. How much should I be saving up for something of decent quality of the attributes I want?