[Grandpa Kim]

In addition, tiny domed planets have many good uses. Since they will never get much of a population bonus, they are a great place to put anything that doesn't produce resources, research or intel. That means you could use a single facility planet for:

space yard
resupply depot
space port
urban pacification centre
resource storage
system wide computer/robotoid/databank
resource converter
atmosphere plant
fleet or ship training facility (should be a moon in this case)

and probably others that just won't come to the front of my disorganized mind.

Despite their small capacity, they are good for building units. While your big planets are churning out production facilities for years on end, they may be the only places you can build units immediately. If the the tiny planet is a moon, any excess units over its own storage will automatically be stored on the main planet! If you are producing fighters or satellites, you can simply launch them into space and the appropriate ship can come by and recover them at its leisure.

Don't discount the tinies, they can be very useful.

Kim