Well, it seems like I have underestimated the value of Ice plantes. Maybe I should grab my skies and head for new territory?
It would be pretty cool if somebody could make a little program which count the number of planettypes. That would answer the (apparently) long standing question whether there are fewer ice than rock planets.
But I still prefer gas planets. They have a huge storage capacity and are perfect for stacking large amounts of troops and mines. But thats just my opinion.