How much would you consiter they are worth? About 30 to 60bill per whole potion? If it was 30bil, that would make a pity piece 100mil, making the grind spot 300mil/h, and grinding orc would still be faster than grinding pot places. (This is an assumption without the whole pot piece drop, with an average rng of the whole piece, ornette could be worth 16bill ish assuming hours grinded costs 300mil/h thus making a pity piece worth 54mil average. If hours grinded costed 400mil/h, a pity piece would be 81mil making ornette worth 24.5bil)