Buy it if you want, but it's by no means mandatory.
Only 3 buildings are. Two other are even useless to upgrade.
And once you are done with building, the upgrade is wasted (when pulls are not, except if you draw a dupe...)
Buy it if you want, but it's by no means mandatory.
Only 3 buildings are. Two other are even useless to upgrade.
And once you are done with building, the upgrade is wasted (when pulls are not, except if you draw a dupe...)