If people buy Bitcoin at $8,000, they will get 100% profit only when Bitcoin reaches $16,000. If it takes 5 years to reach $16,000, people will earn more money from Gold and Silver than from Bitcoin. Silver is giving 20% to 35% profit in one year.
Mining cost of one Bitcoin is $5,000 or more. When Bitcoin was $400 or $800 it was understandable because people had to just spend $400 or $800 to get one Bitcoin and $1,200 is super high profits when Bitcoin started from $1.
It is because bitcoin even in its critical state can give a profit for all of us. There's a lot of ICO's project going out there and it is giving us a chance to get earnings from every of it, however, bitcoin users known the risk when they'd start investing on it. It is like a gamble and you must just play the money you are ready to lose.