I think there are some boosters missing that many would fin useful to purchase at the booster lab.
Here are some few new boosters ideas:
- Planes & Trains: there is no boosters for planes and trains! Why not?!
Planes/ Train boosters could be: planes/ trains take twice less time to arrive, or additional help from friend available per each train/ plane, etc...
- Fields/crop: a booster on the duration it takes to grow and crop would be interesting, especially when you have plants which take more than twelve hours to get to maturation. The time booster could be: fields take twice less time to yield/ produce plants/ veggies/ fruits/ etc
- Slow producing animals (pigs, bees, sheeps): a time booster would be interesting to be able to purchase, like slow producing animals take twice less time to produce.
Hope I would see some of these boosters come into the game soon!
Best regards!