User blog comment:Zamphyr/Resource Producer thoughts/@comment-5753669-20121223041828

All a question of what you want to do with the space.

Some villages run with 100% purchases at market. Scooter Stores, Apple Stores are 100% profitable and so form the core of your Village when moving up levels, generating XP and . I built 70+ Scooters but kept the 2nd gen resource producers as liked to see villages walking around the village. I could have used that space for more Scooters and gone thru the levels faster but to what end ??

It is  very additice gameplay and all one can think of is to generate enough XP to move up the levels to unlock new buildings that give vast amounts of  and XP. See my note on Importance of maximising XP for some tips moving up levels