The first five frets.

First 3, but sometimes move up. Reminds me of being the only person on a bus. Lots of wasted real estate.

Mostly the first 5. How about removing the rest, filling in the slots to make it a fretless guitar?? A few months ago I saw a video of someone who sort of did that, although I don't know where the cutoff was.

[ TonyKgull,
Looks like your winning at the moment with regular playing to the 8th fret.

CTGull,
Just a thought guitar manufacturers could offer guitars with only five frets at a reduced cost.

I'm a cowboy chord-er myself. I could get by with just the five frets.

Tape your set list there.  Or maybe a nice note for the audience?  Or remove the fretboard completely??

I use past the 15th fret. Not for everything yet each playing session, 50% of my playing uses past the 15th fret. Probably a habit I picked up playing electric for many years. I use harmonics as well even the one past in the sound hole. It depends where it is because of scale length. None of my acoustics have a cut away so I just reach I can reach to the 16th without leaving the neck. I don't use a capo all I use one for is set ups checking relief.

Seems like a waste restricting one self when there is so much more one can do using as much of the finger board as possible. Sure you get the same note yet it sounds different on a wound string higher up the neck. Like say the high E open on each string sounds different as you move to the B and G and D & A course you need 24 frets to go further. That's where (some) harmonics come in. Sure some notes at the 16th fret don't ring as much especially on the wound strings yet enough to have fun with it.