It's called merchandising , some people would buy just about anything with Logo on it....
Whoever, first came up with the idea to
sell their Logo to obtain free advertising, rather than give it away for folks, was genius.
They even sell their catalog's to so you can order & buy their stuff !
I recall back in the 60's Surfboard Tee's made more money for Hobie and open a whole new line for Hobie Alter...
His boards were good, but it was COOL to wear one of his Tee's
And not just Hobie, Gordon & Smith , Surfboards Hawaii, Dewey Weber....
Sorry I digress, point is its $$$$ for SASS, and thats what they are about "Profit"