My mentality is that I don't want to pay fee in a percent for each membership and a yearly fee, which I consider pretty big.
It's like double taxation. Thus, my mentality is not to pay to many taxes, and search the cheaper taxation, even if this means that errors can occur from time to time (even ccbill had a lot of errors, they submited some memberships to our password files, but the members were not displayed in the control pannel, so.. is this an error really ?

)
My mentality is not to keep all my eggs in one basket, and always try something new.
So far, my only issue with Zombaio has been that they had an error in their site, which did not allowed me to login to my account. This issue is fixed now.
What do I have to lose ? A couple of hundreds ? How would I be in profit paying $1000 to epoch, and then earning a couple of hundreds from a new and small site ?
Any business man knows, or it should know, that profit = income - costs ;) The bigger the costs, the smaller the profit ;)