With the right approach, both sites can bring good profits. You need to choose the one that you like more and develop it.
Yes it will mostly depend on the choice of the developer/owner if she will be interested in gambling site then she will make that site with whole heart and will work for that site with whole heart and if she love dating site then she will work for that with whole heart and then it will bring the profit.
Skill and experience can indeed also be a possibility to get an advantage. For every skill and experience will also make our minds a little bit more advanced than the others, and also when we can easily make a profit then there we've got a pattern of life. Gambling sites are indeed provide benefits, but too risky for those who don't have the patience.Patience is in the liver and when our hearts can be invited to do good then all decisions would be the best thing. Control yourself in order to get the desired benefits