Exactly this; I'd never buy a high quality guitar without trying it (or any guitar for the case).

In the best case scenario, suppose you get a video that exactly sounds like the real thing. But then you're missing how the instrument feels on your hands. I know about a professional Spanish guitar player. He's well known among his colleagues because his guitar is really hard to play; you just need to have really strong hands to use it. And if you don't, you just can't use it for long hours. The instrument is just excellent, its sound is fantastic, the finish is just first class... but 99% of professional guitar players just can't use it on a regular basis.

And then there's the point about the same instrument just sounding different on different hands. A couple years ago I watched an extreme case of this; a teacher and his pupil; they both were trying the same guitar, but the teacher had a way stronger "touch"*. The instrument just sounded much better when the teacher played it; he was able to get the 110% out of it, since the pupil maybe made the 70%. And not because the pupil was a worse guitar player, but just because this wasn't the instrument for her "touch".

So all in all; you do must have to try the instrument before you buy it. Compulsory.

*I don't know the English word for Spanish "pulsación" in the guitar world. I mean the way the player plucks the strings with their nails.