A lot of it boils down to cost of development for me personally..

It may take me 100 attempts to get a new deposit daemon to work properly.. On HIVE it costs me $0 to do this aspect of testing where as on etherium I'd be paying well over $100 to do similar testing.. That in itself is the biggest appeal to me. The barrier of cost of entry is low and allows those without the financial means to foot development costs on other chains to still build the foundation of their application architecture on a crypto network without having to give up eating to cover GAS fees. :/