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.
Would the acceptance of multiple crypto in ICO be good? Because what I can see, price might be different of these each crypto. Their ratios might not be a hundred percent accurate. In that case, there should be a single cryptocurrency that is universally used in order to make the investments stable and to avoid discrepancies.