Alcoin is better investment if you can choose the right coin to buy and hold while market is not yet recover. You can make huge profit through alcoin even if you just have small capital but once again, it depends on an altcoin you are going to choose. So, better to have a deep research first about a certain coin before jumping in to avoid huge losses in the future.
But that is a huge if, selecting the right coin when thousands of them are created each year and the size of your capital is limited is something incredibly difficult to do, and even if you happened to pick the right coin then you need to hold it until you get profits, something that we have seen is incredibly difficult as altcoins can have extreme downwards movements, so a person may have chosen the right coin, sell it when it crashes and then miss the meteoric rise which comes afterwards.