pigmaker wrote:so my best guess is, some of them are made in limited edition runs with different finishes, so a lot pricier than the "normal ones"
i'm seeing other pedals of the same model for a lot less,
is it just a difference in finish/collectibility, or are their differences in the respective circuits?
There have been some historic models where some finishes had more unobtanium transistors than others, but in general the difference is cosmetic.
For the most recent few releases, they've been doing a Standard edition that they plan on keeping in production for a while, and various Limited ones in different numbers of finishes. The Standard edition uses some surface mount parts, while the Limited ones are all through hole.
Depending upon your taste in fuzz there's a lot to like in their various fuzzes. The Sputnik III is pretty amazing, and I like several other of their fuzzes as well.