With bitcoin as well rest of the altcoins every dip is an opportunity to make an investment. Very few make use of this while majority of the users just keep hold of the assets for the bull trend. To make a good profit out of bitcoin it is a must to move along with the market than just holding focusing on targeted growth.
Bitcoin is the forerunner of all cryptocurrency exchanges, which we can see that the whole world has seen the rise of cryptocurrency through Bitcoin. Simply put, Bitcoin reigns supreme when it comes to cryptocurrency discussions.
Based on the market performance we can say that investing in Bitcoin is a safe option, but the growth of Altcoins is fast and phenomenal. Besides Bitcoin we can dip other Altcoins because there are many Altcoins which have increased by almost 1000% in 4 months. With such gains comes risk although Altcoin dips will be riskier than Bitcoin dips.
We talking about real investment here in this space and not about gambling with money through altcoins as you suggested. True bitcoin has been phenomenal and has paved way for other cryptocurrencies to enter into the market but bitcoin is entirely different from altcoins. And every dip in bitcoin price is more like an opportunity for a DCA investors unlike altcoins where almost any dip can send those shitcoins to a journey of no return (dump). No experienced investor that want to invest long will buy the idea of investing in an altcoin except there's some sort of ignorance somewhere in the middle.