I'm a newbie, so I might be off. But here are my thoughts (after a ton load of work).
For organic results, I believe this product is going to be evergreen, not splash. It's a great product and I predict word-of-mouth will keep it selling for a long time. Autoresponder stuff is not sexy so there is an innate problem with broad appeal. But we all need it, so it will always be there.
I also think ALB will kick in a bit after the Reese splash (which is sexy).
The only people who seem to have profited from the ALB splash were ones with large lists.
(Heh... the very ones who don't really need this product...)
I don't know how many people are actually searching for it right now, so I am not too confident about PPC. But I have no doubt "Automated List Builder" will end up becoming a recognized phrase. But it's not going to happen from one day to the next.
Hang in there Mark. I sincerely believe this one will be a nice steady little stream over time. It should be around going strong long after some of the sexy things get older and not so sexy anymore.