I am wondering some ICO's accept only ETH. Some accepts BTC, ETH, LTC and other cryptocurrencies as well. Does accepting more currencies in ICO plays a roles in its success.
Also Ethereum's smart contract are built for accepting only ETH. How other ICO's are accepting multiple cryptocurrencies and pays tokens accordingly? Do they have to maintain a sheet of who pays in what currencies in a sheet and allocate tokens accordingly. It seems to be a hard manual process.
Yes of course, a lot of persons don't like making use of ethereum and might not want to use it in making any purchase, I am talking out of experience because I am one of those persons.
I like to make use of bitcoin than ethereum for purchases via crypto, though some ICO companies write the token sale code in the smart contract which unfortunately accept only ethereum as the mode of payment for making purchase of instant token being sent to the wallet of the investor.