I'm one of the etherwallet users today
because of its nice opportunities
like many tokens that you can buy on Ether after you exchange dollars, and different types of tokens today that you can trade in dollars, MyEtherWallet gives you the ability to generate new wallets so you can store your Ether yourself, not on an exchange. This process happens entirely on your computer, not our servers. Therefore, when you generate a new wallet, you are responsible for safely backing it up.