NormK especially when they were made for 37 years vs maybe 9 and 7 tops for zip start and side pull full cranks respectively.
Yet you still see SPFC from time to time, especially the steel base ones which at least recently weren't commanding very high prices at all and could still be found dumped.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!