About: http://webisa.webdatacommons.org/418781490

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Since cost is an issue, my suggestion would be to look into the new casio line (I have not had the opportunity to try them out myself, but at that price range they should be worth looking into).
http://www.w3.org/ns/prov#wasQuotedFrom	pianoworld.com