The only value I personally find in self voting, is getting more attention to my posts.
I believe I should get some real value from my STEEM POWER investment, and that value can only be derrived from the utility I get from it. No utility, no investments.
I don't think giving money to myself through self voting, benefits the platform, or the community in any way. Plus if you eliminate that temptation, there's a whole lot of incentive to start voting other people's quality stuff.