don't forget to use the upgrade facility
button. this way you still get resources while you upgrade them. It (blush)took me awhile to figure this was possible and I kept loosing resources by removing and then re-building upgraded ones, (everyone makes mistakes) I guess i was just in to much of a hurry to play the game.... One can only learn from his mistakes..
just some ideas mac
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just some ideas Mac
BEWARE; crochety old geezers play SE4, in between bathroom runs Phong's Head Parking
Do build the storage facilites as when you do a wholesale upgarde of facilites it can cost you a lot!!!
A friend just did an upgrade from res 2 to 3 buildings and it cost him 120,000 minerals approx, without the storage you can ride the dips like that.