"The cost of a B-2 stealth bomber could build over 4,500 homes", and it becomes obsolete within a period of time.
I find no bomber on Cerok Tokun, but mosquitoes attack me silently from everywhere every time I stop by and start bookmarking; each of them sucks about 5-millionths of a liter of my blood, returns me with red itchy bumps. They never become obsolete as having a radar system to track me. I do not have this, but mushrooms always appear out of the corner of my eye. I take away many of them in 2D, but not 4500 homes.