Hi All
Not sure if this is going to be relevant but, rather than keep buying music and fake books, buy one of the many books that teach you how to play music by ear, that way you will eventually be in a position that if someone asks you to play a song for a specific function etc, you can search the web for MP3 files to listen to and play straight from there.
The fact that you can already play a hell of a lot of tunes from fake books, means you will only need to go that little bit further to play by ear.
Just a Thought.

Bill