Don't let new crime get rich from your own pocket when they make you poor.
Bitcoin price has been manipulated till now. Their real value for 2018 may be in range 3k - 6k only. There will be a big drop after more investigation to the Bitcoin, ETH manipulation price. https://www.nytimes.com/2018/06/13/technology/bitcoin-price-manipulation.html
In the biggest exchange site, there's an automatic price with small different will be popped up in front of yours after you make an order.

Moreover. over $1 Billion USD lost in 1,000+ faked ICOs, check this: https://siliconangle.com/blog/2018/07/02/cryptocurrency-deadpool-1b-lost-1000-initial-coin-offerings/