I don't know the other but to be honest I am profit seeking gamblers.
Fun seekers or profit seekers are no better, both are the same Because the important thing is not what we aim at gambling but how we do it, how we control our emotions during gambling, how we manage our money. Because without good emotional control, both will end up with losses.
As mentioned fun seekers and profit seekers don't differ from one another. The reason is that gambling is much focused in money making, but the same won't happen with every user as well all the time. So gambling is completely profit seeking source when the fun gets importance on winning.