No 1 to 4 foot tall plant is yielding 5 ounces, let alone 5 pounds. When they catch a bank robber, they count the money he took- not what it would be worth in a few years with inflation and good investments strategies figured in. They can say the pot is worth whatever amount they want, and most folks will believe it, and even if they don't, they will try to conjure up some scenario in which the amount might be believable.