I've always thought it would be cool if I could have my own ketch :) Could be awarded in a quest for capturing a Fallen boss's ketch. Like a private social area. There is a helm where you pick your destination, and then when you hit the button to go there, the load screen is the same as usual except you see your huge ketch flying in. Works just like a regular ship for going to locations, but maybe with some perks like a private vault kiosk. Your fireteam can join you on it and you all ride into a raid or whatever together. No real practical value, I just think it would be fun. Though, I guess eventually it's the only ship anybody would use, so that might be a problem.