The SE's had many problems, and I'm betting a good reason for stopping production was for that reason. Also, the popularity of this scale waned and there just isn't enough interest anymore, I guess.

Personally, I would have liked a few more SE's and ZZMT's as well. You'll have to look on ebay now.

Have you driven one of the new zipzaps from Cars? From what I have heard, they are by far the fastest of the zipzaps and easy to drive without proportional control.