I brought some EOS tokens on one of the daily token distributions and I discovered the recommended amount to run a contract is to set a max Gas Limit of 2000000 units and a gas price of 21 GWEI. That will lead to a max transaction fee of 0.042 ETH or 8.52 usd.
I was trying to set smaller amounts, to around 1usd(which I still consider high) and the transaction was rejected because it ran out of gas. However, the fees I set were paid so I lost those money even if the transaction was not confirmed.
That amount is amazingly high in my opinion. I'm not sure if eth devs are having any plan to work on it in order to reduce smart contracts fees, or if Casper update is going to lower the fees, but it's just a matter of time until eos will be alive. And there will be many people like me who will prefer reasonable fees(I think eos promised to have 0 fee to run smart contracts).
The discussion is probably wider than that, but this is another reason for me to think that Any Proof Of Work Cryptocurrency is Doomed to Fail on the Long Run