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Right now it's about $515 (still has a couple days of active payout left). Though on this one, I actually wasn't the one who 'boosted' it with the bots...instead the community owner it was about, where the goal was getting views and people to join that discord. (A good win/win in this instance...in my opinion)

Really, most the promo bots seem set (and I believe this was the intention) was to typically get the amount you paid in...essentially a near zero ROI on those bought votes themselves. The bigger value comes from the votes acquired from human Steemians.