It's true, the risk of altcoins is indeed higher than Bitcoin. We can use altcoins only to make daily profits, while Bitcoin can be used for long-term investments because the value of Bitcoin which always rises becomes very expensive due to the influence of increasing demand.
Its possibility with altcoin make daily day profit but not guarantee yet how many altcoin easily drop and difficult recovery back to higher price.
I think bitcoin currently have been expensive but always has moment for bitcoin raise up to another expensive price, many trader have bad mindset with bitcoin have too expensive but most of them forget with how many time bitcoin success raise to most expensive price. Need to change with scare habit when looking bitcoin price have been expensive because in future bitcoin always have moment raise most expensive price.