I was looking at ETH and as far as I understand, this coin is mainly successful because of the ICO's nowadays.
ICO's are booming and it looks like it never ends. But what if all ideas are gone and the amount of new coins which use/ need ETH are decreasing. Would this have much effect on the price?
Maybe someone can correct me if I am wrong?
It is not correct in my opinion as ICOs flood start from some time but ETH has its own strength and its "smart Contract" option and ICOs take interest in it and comes in the market through ERC20 tokens which are ETH wallet compatible. ETH is the number 2 coin in overall crypto market after BTC not due to ICOs but its own power.