Everyone wants boots and everyone wants them as cheap as possible. Sure, the cheapest way to get them is through events, but sometimes you are willing to pay for them with gold. Before you go and just click that button to purchase a 7 day boost, consider looking at coffers. They can save you lots of gold. For boosts specifically, you can save 25%-33% by buying a coffer as compared than individual boosts.
|Standard Coffer||Large Coffer||Huge Coffer|
|Indiv Cost||$6,880||Indiv Cost||$16,675||Indiv Cost||$52,300|
|Boost||Gold/H||Actual Cost||Number of hours|
As you can see, the best value for the gold you spend is the Huge coffer, by far. It offers the best gold/hour cost and it also provides some smaller speedups that you can use for other things. My approach to using gold to buy speedups and using them is this: I use 7day, 3day, 1 day speedups for research and construction. 15h speedups are good for training t3 troops, 8h boost for t2 troops and 3h and 1h for t1 troops. I have 12 manors and 2 barracks and 1 infirmary. I only buy huge coffers with gold.