id like to discuss certain research, and questions i have.

[Endless7]

So i have a few questions about certain research im not sure about, good strategies for and general usage advice would be great, in as much detail as you would like to provide, thanks.

the first one is
Vaults-increases the time taken to pillage your villages
Im guessing that means you have more time to kill the attacking army? but doesnt that mean they also have more time to pillage?
Is this worth researching? i take it to include gold as well as all other resources so that must be some benefit.

the second is
Pillaging-increases the amount of resources that can be pillaged
This is kind of the reverse angle, kind of the same questions as well, and is it worth researching, i plan on being more militaristic but i cant see the benefits of stealing when it costs to make troops and i can make pretty much everything myself, other than being really annoying to my enemies.

the third and final is
Ransacking-increase the number of building that can be ransacked
I take it to mean building that are destroyed, is it worth it? i can see the benefit of destroying building and having to make the enemy build them again so id say so, any thoughts?

thank you all in advance.

[Endless7]

thank you everyone for your input, im starting to see your points.