Re: [ANN][ICO][GIO] GRAVIO - Ultimate over-UСS: AI, IoT & E-Commerce inside
Rented another 520 MH/s for 3 hours , manage to mining 65000 GIO for $5 
Yes, for now this is true.
But look at miningpool stats: the next difficulty change will appear through 2520 blocks and estimated difficulty will be around ~16-18. So, with 500 MH/s (if status-quo is remains) you can get around (may be) 25-30 blocks (or 25-30000 GIO). Next diff change will be around (i think) 60.