I do tend to agree with that, because over time the tension from the strings will pull up on a neck and make the guitar sound and play poorly. To fix that you have to take the neck off and adjust the angle of it back to the optimal position, which is a big task if the neck is glued on. With a bolt-on unscrewing a few bolts and adding a shim is trivial, using a capo you don't even need to take of the strings.

It's a main reason why I like Taylor acoustic guitars too. The bolt-on shimmed neck makes neck resets a breeze and will keep the guitar playing well for a very long time.

i have mine insured on lemonade.com

design-wise there's also PRS, which gives you a little of both