Love the idea. It can also be updated to satisfy Activision's financial fetishes too. It can be like Warframe's clan dojo. Base ketch is free, grind parts/components/etc to expand it and such the hard way. There would have to be 2 new currencies implemented to apply only to the ketch. Then Activision can have parts/furniture/npcs/etc that can be purchased. An example: You get a random trader in your ship or rep from the factions/vanguard with currency A. Pay $X for X amount of currency B and use it to purchase an agent of the Nine to be aboard the ship (timer or not, depends. One time purchase). Simple upgrades that are not forced or required, but fun if you want to pay for it. I have said it once, and shall again: Bungie and Activision can learn a lot from Warframe, and make Destiny better in the long run with it.