Currently the only option to invest in and hold over the long term is Bitcoin. It is the only truely decentralised cryptocurrency, with a finite supply and being used for its original intention on a regular basis - a storage of wealth that is not impacted by inflation, and the ease of making borderless transactions.
What I am ultimately getting at here in the theme of my post is that there is no other coin besides Bitcoin, which you can trust can be held over the long term. What are your thoughts?
As much as I agree with you that Bitcoin is indeed; the only crypto currency that can be completely trusted to be held for a very long time due to its totally decentralized nature and limited supply,
I will be honest with you, there are several Altcoins out there that are worth holding too, aside bitcoin, many Altcoins have made alot of people millionaires and billionaires in this space and even in the outside world, this is for those who's goal is to get rich through cryptocurrencies, if this is your goal, then you just have to diversify your investments into Altcoins while holding as much bitcoin as you can afford.
See money in bitcoin as a retirement funds or savings, and see money in Altcoins as investments for short term and mid-long term profit.
Don't hold bitcoin alone, you will regret it at the end of the day, except you are really good at closing your eyes to missed opportunities.