I think you are mistaken here. The line was successful enough that it carried well past the expectations of those at Hasbro (they said so much during various BotCons). I think it became expendable with the movie line, and the need to streamline the brand (Dodge, Honda, and Ford cars would cheapen the deal that was struck with GM as well). To me the Alt/BT line is a subsection of the MP's. Unfortunately I feel that in today's world Alternators would retail for at least $35 to keep similar standards. I tried the HA toys, but the designs feel cheaper (aside from Jazz), the scale is too large, and the plastic tires kill me. Long story short the line was anything but a failure.