Is $50,000 reachable? Harder but not impossible! (>10 years)
I would like to sleep today and wake up after 10 years and hope to see this price

Some well known gigs have also predicted even $1 million is possible per bitcoin within next 10-20 years.
In 10 years you may not see bitcoin at all. Let's be not so optimistic, cause of such variant is also possible. I have started to save bitcoins just couple months ago and of course I hope to the price sky rocket. In my country there is no any law project about bitcoins circulation, so, I don't know what is going to be changed after such law will be accepted.