BUG/EXPLOIT > DECREASING ADVERTISING WILL SET DEMAND FROM 0 TO 5
There appears to be an exploit regarding the "Upgrade Advertising"-feature.
STEPS TO REPRODUCE
Increase advertising from 0 to 1, at a cost of 200$.
Then immediately decrease advertising from 1 to 0.
Unit's requested will be reset to 5 at this point, faster than they would be if you just allowed the demand to grow "normally" in relation to time.
ISSUE
If you do this exploit between the first two cities, even a factory upgraded to 400,000+ level, cannot keep up with the demand.