AS per my experience of 3-4 years. we can expect 25000-30000$ per btc maximum. what is yours?
But do not invest your all money to btc , only invest what you can afford to loose. Do not put all the eggs to one bucket , diversify it. if you have 100$
50% put to btc others to alt coins.
I think, bitcoin price can reach $ 25k if we look at the movement now. Maybe the price will be reached at the end of the year but it could be sooner because the price of bitcoin is difficult to predict and always surprises investors