In the meantime, can I suggest 7,22,80,500? You are likely to sell out at your current new prices.
On topic, no, I don't think BB is dying a slow death. I know another game which is dying a slow death, BuzzerBeater is not. BBs are putting a lot of effort into this game, and there has been so many changes lately, that this game is fast improving. If BBs continue this way, the game can only get better.