The one cb building a time makes sense to me. The trains always arrive with materials that I need. Just yesterday, my last cb was short of 1 slab, 2 trains arrived full of slabs. I haven't repaired the mine yet, so no tools.
iPad - Lyndie's town level 137. Zoo level 41
Mac - Lyndie's town 2 level 181. Zoo level 45
I built every CB, except the worthless Mint, one at a time. Yes, I always had to wait for one of the building materials to be able to complete construction, but I have never bought materials with TCash. There is no trap to get you to spend money, as Lyndie says above.
So many players seem to start construction on several CBs at once and get themselves into a real jam. The game didn't do this to you, you caused the jam-up by having too many under construction at the same time. Only patience will help you get out of the jam.
Join Date: June 2014
Level 159
Zoo Level 45
IOS - iPad Air
Co-Op: Sogno Mare (Sea Dream) - Sail only for certain rewards.
Town: Far Niente Bay
Ideas That Cannot Be Implemented At This Time (Or Ever)