I'm assuming that you have to colonize a planet to gain the acient tech (unlike MOOII where merely discovering it was sufficient). That being the case - if I colonize a sucky planet to get the tech - do I lose the tech if I abandon that planet?
__________________ 'There are old space jockies and bold space jockies but there ain't no old, bold space jockies'
Yeah, planets with no resource value are still useful as resource storage. You ought to have the equivalent of at least a year's maintenance costs on hand at all times just in case of disaster. It's difficult if not impossible to have 'too much' resource storage.