I agreed that Bitcoin is very strong and definitely worth buying. However, I believe in maintaining a diversify crypto portfolio. Hence, keeping some good altcoins are important too.

Priorities.
It will still be better to have a bigger basket in bitcoin.
This is the Father of all crypto currency and it is a sure investment. When all this altcoins start popping out it became more valuable.
Why? People will still need to move it to bitcoin just so they can exchange it back to cash that they used to invest with other coins.
With that, it is easy to say that bitcoin is essential. It is needed for going in and out the crypto world.

I think selling your alt coin is not good decision because some alt coin has also a high value which give us good profit. If you have more capital all you need is hold your alt coins and buy more bitcoins for more profit to come in great perfect time.

Yes.Especially now that bitcoin and altcoins have the same trend already,if bitcoin increases its price,altcoins follow the same way too.So better to hold your altcoins until you see the price soar high again,then you can sell them to gain good profits.I think bitcoins and even altcoins today are already good for long-term investments.

No not at all. I don't sell my bitcoin and Ethereum or any others altcoins in situations of dumping price. Because it may bring for me a huge amount of losses.

Bitcoin is very strong and we are right for choosing to invest in bitcoin or ethereum, Ripple, because I believe it is a very good coin coin for the long term.

This is also what i did to my altcoins holding I sell some of them for bitcoin during its peek price but not all, I hold also thus altcoins with a big potential that can generate me more profit than bitcoin.

Is this for real what is the basis of thier statement. Pls give us a proper citation and quotation where did you get this information to know the full story and all the article content. To give us more knowledge about holding crypto for a long time.

Altough altcoin also move faster like bitcoin, but, bitcoin is still dominating the market. And im agree with that opinion. Maybe we should move into bitcoin because bitcoin is more secure, strong, and promising than the altcoins.