Refretting Guitar

This is a 1.95 minute video response from Matt Brown on Nov 1st, 2008

Question:

"Stabec says, "I am starting out on an old guitar that my mom used to play. I was noticing that some of the frets were worn down and had flat places on them. Would this make an already difficult task of playing this instrument even harder? Should I refret the worn ones or do I just need to suck it up and mash til my fingers bleed? Thanks, stace""