I have made a lot of money on promo stocks. I have also lost on a few. The trick is to count your money at the end of the year, and see if your ahead of the game. Don't gamble with more than you can afford to lose. I assume you know that. I'll give ECAU some more time. I don't expect them to be another WPRT just yet, even they are not getting the sales that were expected, because gas has not gone to $5 yet.