$10.00/lb. sounds like a lot. This year's price from Southeastern Pond Mgmt. here in Alabama was $5.00/lb for Tilapia which were large enough to escape predation and to begin breeding right away. As I understand it, they are mouth incubators and do not expel the fry from their cheek pouches until the hatchlings are big enough to be good forage size. This means a high success rate from each large and frequent brood cycle.

So far as ruining bass fishing, I suspect that such can only occur if the Tilapia are in water warm enough to survive year-round. The problem is their astounding fecundity and high initial survival.
LOu