I read that self voting is more financially rewarding, but these are possible financial advantages of curation.
Curation might get you upvotes in return and or a new follower in addition to curation rewards. In most cases it will not, since most accounts here are spammer accounts, or close to it. In my case, I regret the cases in which I did not self vote, but even when I do, since I am not a spammer, in order to not waste my voting power, I curate, and on the way to it, I find some good content from time to time.