We need not worry about the current trend about the Bitcoin, even the price of drops and suddenly the price of Bitcoin starts recovering. So it is always good to grab the altcoin when we have spare money because once it starts recovering we might make some decent profit with the Bitcoin investment. So Bitcoin investment is always good for the long term.
As long as you believe in the research done and have a good way of investing, I'm sure bitcoin can be profitable especially for long-term investments. the most important thing when doing a hold you must be patiently waiting for the intended target to sell it