Specialize!
Mixing strategies (constructing many types of buildings) is generally not efficient. Without specialization, it is more difficult to fully take advantage of government bonuses and technological improvements. In addition, the production of some types of buildings is dependent on what percentage of our land is filled with them. We should pick a strategy and use the public and private markets to get any goods that we don't directly produce.

Rainbows are created for us to farm :-)

haha!