what if my rank is high whats the benefits for me?

i have question isida m2 full MU cost 500k to become as strong as isida m3 , but in the other side isida m3 which is strong as m2 or stronger a bit cost 160k , What the? i mean who will pay 500k to get isida m3 but looks m2 while he can get m3 with better look for 166k that dosen't make sense depending on http://en.tankiwiki....-upgrades_Isida

well, thanks all but i have question isida m2 full MU cost 500k to become as strong as isida m3 , but in the other side isida m3 which is strong as m2 or stronger a bit cost 160k , What Da >>>>? that dosen't make sense depending on http://en.tankiwiki.com/Micro-upgrades_Isida

جومثل ما انت جيت

now if i fully micro-upgrade wasp m1 will the next upgrade available for my rank which is m3 cost 0 crys?

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