The price of Steem is pretty low right now at 1.11 USD, or 0.00030309 BTC. I think that's a good thing for those of us that are trying to power up for cheap. However, I think this is affecting our upvote worth.
Right now I will have to take advantage and try to power up. Right now the upvote worth is low so hopefully the price per upvote goes up when the price goes up. It's tough for those that are trying to increase their upvote worth, but we will have to try our best and hope that the price goes back up, along with the upvote worth.