"Isn't the GT all about the look?"
The GT's look is a definite wow. For me, I wanted a quality roadster, with a parts supply line.
But, if all RE wanted was some wow, they certainly over spent and over built. --- Harris frame and design, Italian suspension, Brembo brakes, a good looking and good working front end, Pirellis. For me, it's a wow looking performance bike. I'll stick with the Pirellis.
If I got a Bullet, then the modern made K70s would be on there. The GT is no Bullet. There are retro elements to the Continental GT, but functionally it is a contemporary machine.
A lot of the cafe racer industry is stuck in a CB500 re make mold, that includes agricultural tire looks. My GT isn't part of that. I vote no to agricultural/vintage tires on my GT.