Yes, I was looking for a point of comparison. Pu-239 is probably also quite expensive, as both isotopes are prepared by using a reactor to irradiate stuff. Only

Yes, I was looking for a point of comparison. Pu-239 is probably also quite expensive, as both isotopes are prepared by using a reactor to irradiate stuff. Only way I can see a "$2k" cost as relevant is if it's the cost to someone who's already acquired the nuclear material.