This answer appeals to me, because it implies the order of a galactic civilization with some sort of ethical sense. Before They Visit. This, of course, is an answer that goes completely beyond physics. I don't know. I have that given a choice between living in a body trapped in spacetime with an absurdly low speed limit and living in some nonphysical realm where I can go anywhere in an instant and not have to spend most of my existence asleep, well, you know which way it would go.
Biology is immobility.
The Fun Is All In The Fourth Dimension. Basically, there may be some technology yet to be developed that yields more interesting things to do than poke around a mostly empty universe looking for planets full of other people to talk to. Well, maybe C is unusually low in our universe. Maybe in another universe the speed of light is measured in trillions or heptillions of miles per second, and star travel is just a matter of accelerating like hell for a few months to get to the nearest stars and back. Basically, star travel is probably a horrible energy-sink, difficult to do, and maybe boring.