Even though today many people have doubted ETH because of the current decline in ETH prices.
but I still believe that ETH is a very worthy coin for long-term investment
and I am sure that next year ETH prices will increase.
Right. Same here bud. XRP many times and sometimes BCH went number two but they didn't really lasted long. Ethereum is still looking solid in the second spot and who knows long term might even be at the top most.