You make good points. The only caviat I would offer is the premise behind investing in a speculative penny stock. Anyone buying a stock like PTSC should know the risks associated with penny stocks in general and PTSC's specific situation in the market. Penny stocks are volitile, both ways.
As has been stated, at $0.65 just how bad a deal is the stock? I don't have a crystal ball, but I do believe the risk : reward equation is on my side of this one.
PTSC "potential" is the key, and it is the potential upside that draws penny stock investors -- and sometimes we just get lucky. Lucky is better than good, IMO.
John