Hey, as the title says I'm completely new to the mining world, and i'd like to buy a ANTMINER S7 BATCH 8 i've been doing some math and accordingly to this site " https://alloscomp.com/bitcoin/calculator " i will be making around $200 a month with it minus electric cost which is about $.11 in my state "FL", i'd like to know if i'm missing something if i do can you guys point me to the right direction? thanks

By the way i'm not new to the bitcoin world at all, i've been buying and reselling BTC for the past 10 month, but as of now id like to start mining my own coins, thanks again