It is arbitrage buying cheap ...
how long it takes withdrawing fiat to OKpay or PerfectMoney so i can make the same circle more than once a day or not?
am i dreaming
Yes, you are dreaming. At least at present. Fees
and turnaround time make this a losing proposition.
At one point last month you could pull this between
BitYes (buying BTC) and Coinbase (selling BTC).
That was because of low fees -- both Coinbase
and Bityes were running zero fees for makers.
Turnaround time was more or less one day with
Coinbase consistently at a $2 premium to Bityes.
However this relied on using Astropay to get
USD quickly back to Bityes from Coinbase with
zero fees. Now Bityes has reinstituted maker
fees, suspended Astropay deposits, and the
average premium as fallen to ~$1.