Most blues guitar players and vintage style players refer higher action...as do I. This is mostly because higher action gets better tone. When you lower your strings to the fretboard it usually hinders the vibrational fruequencies of the strings and their translation to the body... Also, when bending a string with higher action you have a lot less chance of fretting out... fretting out is when you bend a string and the string makes contact with a fret a few frets higher... causing it to deaden the note completely. Slide players use high action so they don't get fret buzz when they lay the slide on the strings... I mostly do it because I use high gauge strings... and it helps the tone resonate.... Higher action calls for a different setup than low action though... so if you're thinking of switching... take things in consideration... Like intonation, truss rod adjustments, bridge adjustments, pickup adjustments... tremolo adjustments....... and any other unforeseen problem...