Assuming you're satisfied with your instrument and strings, but you still have an itch to upgrade something, what would you do to: 1. Improve the aesthetics 2. Improve the tone. 3. Improve the play-ability 4. Make life easier 5. Whatever I missed... I think my $60 is probably lacking, but I have $10 technique so right now it doesn't inhibit me. I like Edgar Myers' dot marks on his fingerboard. I'd do that even though I don't use markers. The tuning hardware on the SB-88 seems like it would benefit from an upgrade, as would the end pin.