It just makes sense to do this before a customer makes a purchase IMHO.
Another good reason to be able to try before buying but that is not possible for a lot of people.
I only have 1 music store within 60 miles of my house and learned the hard way many years ago that setups were just a cash grab for them.
Bass setups are one thing but acoustic guitar set ups can be a lot more involved.
When I was looking to buy an $800 Taylor Electric acoustic guitar the one I wanted had level frets but did have fret sprout and the intonation was way off. I was told that to fix the fret sprout and intonation issues I would have to pay $200-300 to fix the issues. So I purchased a Yamaha Electric Acoustic, from a different store, and all was fine right out of the box.
I feel sorry for first time buyers that do not know what to check when purchasing an instrument and have always told them to take somebody with them that can give them advice.
I own a few Yamaha stringed instruments and have never had issues with quality and I cannot say enough good things about their customer service for aftermarket parts. As a case in point, I purchased a couple of replacement nuts for my TRBX504, direct from Yamaha, and the total price including shipping was only $15 Canadian.