User blog comment:WolfgangBSC/Wolfy World of Tanks/@comment-14850713-20160117170826/@comment-12494172-20160117174411

Fact: Consumables such as the repair kit can save your life. From an economic perspective, it makes more sense for you to live longer and (potentially) deal more damage for the price of 3000 versus losing a tank which is well over that price. This appears by tier 5 even in a StuG III G.

Equipment is useful if you want to KEEP the vehicle as it BOOSTS profits by INCREASING vehicle performance and items such as EGLD will lower exposure time!