i think your assumption of bitcoins price or rate that is about 800$ per btc is not wrong .
since no one can predict wheter the price can rise or fall but here it is to be noticed that the average rate of bitcoins are around 400-600$ this rate can change from below to above or above to below .
change of btc is mainly may be due to halving . halving shows its effect at the bit coin rates even about after one to two month .
so overall there is chance to increase the price about 800$/ btc
since this time the rate decreased so i am waiting for down more and then i will buy
The bitcoin price dropped to below $600 due to the Bitfinex hack. Other exchanges are fine, so the price will recover.