Apparently the Collector Club have released an image of their Circuit with the original Actionmaster Circuit, to show how close they got the colourings.

It probably won't be a popular figure among Americans, because it was not a toy released there, and wasn't included in fiction, so there is very little personal exposure to it (plus it has the bright colours that UK Hasbro were dabbling in at that time).
For us though, we were more likely to see it, but the colours and non-convertibility of the toy would have still seen many of us here pass over it for something with better "value".
For me though, this was my first Autobot Actionmaster (second AM, after Treadshot), and at a time when I only had about 25 TFs toys... so like Sky Shadow above, I have a sentimental attachment to this character/toy.