Now itop may not like that but that was true.
http://www.itopshop.net/world-biggest-miner-antminer-s5-bitcoin-miner-77-t-3436w-p-271.html
3299 plus shipping
https://www.bitmaintech.com/productDetail.htm?pid=0002015081407532655504JMKzsM067B
2307 plus shipping
so we are talking about a big mark up here.
My question to iTop is will you reduce price or keep the markup?
The biggest thing in my mind is if you buy direct from bitmain you have 90 day warranty. Warranty do not transfer so if you buy from ITOP you have no bitmain warranty, unless they are lying to bitmain and send it in as if they still owned it and did not sell it.
We provide the full warranty same as the manufacturer does for whatever products we resell , we charge a littlie bit more to cover the extra expense it may causes ,more payment options and better customer service .