BTC price will be around 800 - 1200 USD this year, high price means that BTC mining is more profitable. So it is also the right time to sale some spare BTC.
It is only your opinion about the estimation price of bitcoin would be. I don't know where did you get amount, it can only your rough estimation or guessing something etc. But according to the bitcoin experts, their projection was very far to you estimation. And I do believe it will really getting higher after the ETF result.