I could be remembering wrong, but pretty I get paid more for my delegation to OCDB than I do if I was the perfect curator (on top of that the bought hasn't paid out curation rewards to delegators yet).
So yes, if I self-voted then I may be coming out ahead, but so far I think it's been a net positive for growing my account.
I will agree with you so far on my other delegations that it would have just been better to keep it myself and grow my account.