I don't search for new places, usually go with the flow, meaning that if a spot gives me something that makes me start playing there and I do well at first, I'll probably keep playing. People like to stick to the things they know and casinos know it.
I guess I'm a typical guy here. If they offer me free free money or something like an x2 bonus on my first deposit, or they give me free rolls to test out the site, I might do it. Then if I like it there I'll keep coming back until I win big or until I lose big. Then I'll either get so happy about the big win that I'll decide not to push my luck anymore and give myself a break, or I'll lose and blame it on the house...
I see myself as a typical guy as well... so I am also going with a flow, good promotion, something interesting, a new feature, or anything that can draw my attention and I am ready to give it a try! After giving it a try we either find some casino attractive and we are ready to stay there and fight our way through loyalty levels and get even more, or we will look for some other casino!
We feel comfortable in one place even when we lose some money there or we are looking for a new place that offers more! So, in the end, it all comes back to casino offers, more features are definitely better, different people will find something for them!