Going back to the story on the gibson robot:

"For as long as the guitar has existed, guitar lovers have had two choices—live with a temperamental and out-of-tune instrument or make frequent trips to the shop for setups."

How frequent? I have never had my acoustic or electric set up. I'm using a 30 odd year old Yamaha FG-351SB (looks like a humming bird knock off) and a 2 year old epi les paul standard. I would imagine given how long my Yamaha has been around it has probably been set up by somebody at some point, do they need setting up again after so long though?