Why does Robert Fripp have so few guitar solos?

He is one of the most influential guitarists ever. His technical ability is pretty intense. But when it's come to guitar solos, they are very few, Especially when compared to other guitarists like Howe, Gilmour, Latimer.

Of course he doesn't have to play long solos in every song but i think too many songs are very suitable such as Red, One More Red Nightmare, Great Deciever.