The best part of the 10th Anniversary of DDO...the description on the Oatmeal Raisin Kookie,
"From a distance you thought this was a chocolate chip kookie. Now you're sad."
I'm not sure that's true. Airships seem to be instanced the same way, say, Meridia can sometimes become instanced at high traffic times. There's a spirit binder in Meridia, so it seems like there could be one on guild ships.
The greater complication is what to do if the binder expires. And possibly, if the ship is upgraded, since that would now be a different "map".
Amenities cost astral diamonds, right? Which can only be bought in the ddo store. So it is still a $$$ sink to add them.
And the 12 comment is brilliant, I'm going to go do that right now