I haven't broken mine yet, but may go ahead and replace it because, as the details note, "It also looks way more trick than the original plastic part!" I can hear the praise now, "Man, that's one nice-looking aftermarket choke cable ferrule you've got on there!"
Seriously, though, it strikes me as a fine and worthy product, though I must say if I were to consider buying one, I would most likely spend the extra $15 and try their Cable-Less Choke Conversion Kit and just get rid of the entire handlebar-mounted choke system altogether even though some on here have ingeniously cobbled together their own direct-mount choke levers for probably less. Even so, I wouldn't have a problem spending $43 to get rid of the cable and handlebar lever.
This may very well go on my list for next year. I've been wanting to do it for awhile but didn't want to mess with scrounging around for Harley or lawnmower parts or whatever is needed for a DYI "direct drive" choke actuator as I'm too lazy to MacGyver one up.
Cable-less option ramblings aside, thanks for the link on the metal ferrule for the standard setup. I would think it falls into the "If I don't need it right now, I might as well buy one and keep it around" category. Good info.