The Vetter gear was installed for long-distance touring. Without it, long-distance touring really sucks... Regarding the "ugliness" of Vetter fairings, and saddlebags, Craig Vetter laughed all the way to the bank -- he literally sold hundred's of thousands of them. He became a millionaire selling his fairings, trunks, and saddlebags. What most folks, today, fail to realize is what they did for tour riding: the fairings were frame-mounted, so all the wind that hit them, was applied to the frame of the entire bike's weight, not the handlebars, so the rider was much more at ease riding in high winds; the luggage is self-explanatory.
Touring began on 250's and other smaller bikes. The 750 is not bad for touring, but a full-blown touring bike is designed for long distance riding, and comfort, where these were All-Purpose bikes, which were adapted to touring. I know, we rode two-up, 1,900+ miles on our '79 K model, around Lake Superior, back in 2009. Had poor quality gear, rode in mid-50's temp's, and rain, for all four days in Canada... Would do it again, same conditions, in a heartbeat. For touring, Vetter equipment set the standard, which is still in use today. Cheers!
1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII