Bitcoin still the best coin for a long-term investing. and with Bitcoin, we can make a big profit especially if the price can increase significantly. we can use Bitcoin for more than two years as our investing and in that time, the Bitcoin price can increase higher. but Bitcoin is also a high-risk investment because we don't know that Bitcoin can stay in the higher price or not and the price can change in anytime. but for a long-term investment, the price will give us a big profit.