I prefer old coins with strong fundamentals to invest in when the market is down. new coins run the risk of being useless, unvaluable and difficult to recover. we see how many coins in the pancake lose their value even die.
New coins are also good, there are so many new coins released every day and most of them are scams but if you have found the legit one then you will become an easy millionaire especially if you will hold it for 1-2 years. I am also an investor of a new coin and I am really contented with the gains that I got from investing in it, whenever I invested in a new coin and I don't think that it won't be lost for too long based on the progress and how active the dev's team are, I will sell it right away but won't sell it if I am already at lost. Those investors who bought at an early stage of the coin always win and can really gain x5 easily.