As a side point, choosing to leave your world and permanently be fleetbound because you want that aspect for yourself seems slightly, well, stupid... in my opinion. Eventually you will require a planet for resources, you can't just forever buy everything from others. You will also need to repair your ships and scrap metal doesn't just come into existence when you need it. Choosing to be permanently fleetbound will put the species into extinction, even if it is a completely computer-controlled ship(s). But if that is what entertains you, then have it.