I think the current cost of Ethereum is at a depressed spot. Since I get it and hold it for quite a while, I think the benefits I get will be much more prominent .The greater part of the current altcoins use ETH innovation so they can confide in the brilliant eventual fate of Ethererum.
Indeed, for now most projects use ethereum as their blockchain. however some are also preparing to mainnet with their own blockchain. With the demands of many people regarding transactions, it can be ensured that many people complain about the high transaction fees nowadays and this is a problem for many people when using ethereum