I'm now all in BTC and haven't sold a bit since 2013. I have a few Litecoins left somewhere but too few to mention.
I know putting all eggs in one basket is not very wise but I don't feel like investing in anything else right now. Is this a risky move? Maybe yes, maybe not.
I plan HODLing more, might sell a small percentage around November when odds say BTC might boost like crazy.
It’s not really bad, I have also been doing it for sometime, though it is not something I do all the time. Sometimes I might decide to buy other coins like Ethereum and any other good altcoins I may find. But, majority of my investment would usually go into Bitcoin before going into any other altcoins in the market.
So, it is up to you to decide that for yourself. Investing in lots of different cryptocurrencies might be good since it’s good to diversify your asset, even at that you still have to know that bitcoin is at the top and most of the time it’s always going to top many other cryptocurrencies you will find in the market.