I think it's hard right now to see bitcoin as a payment and started using it at as a payment, this will only happen if the price of bitcoin becomes stable and stops fluctuating, but this will never happen since bitcoin is created as decentralized and the volatility of its price is continuous.
2018 is a brand-new financial year with praiseworthy financial commitment, especially when it comes to investing in alt coins. Cryptocurrency shows an excellent promise for investors with alternatives to Bitcoin providing remarkable rewards to those who risk their money for an opportunity to gain profit.
The alt coins are also replacing bitcoins as payment medium. Now most prefer ETH for this because of less fees.