His auction looks wrong. He says:
2010 CANADIAN GI JOE CON CONVENTION EXCLUSIVE WITH HAILSTORM VEHICLE AND 3 FIGURES SERIAL #/100
2011 CANADIAN GI JOE CON CONVENTION EXCLUSIVE WITH 8 FIGURES SERIAL #/125
2012 CANADIAN GI JOE CON CONVENTION EXCLUSIVE WITH COBRA HATE SCOUT AND 5 FIGURES SERIAL #/150
Serial number? I think he means "limited to" and 150 sets for 2012? I thought it was still 150, or am I wrong on that?
I assume you meant '125' and I think he was just trying to show how many were produced, in a poorly worded way. I think the # was a place holder to show you would get a numbered set, but there are 5 available.
If it is the same guy he has grabbed a lot of sets several years in a row. Not as much incentive to bring back-up now, since anyone could have gotten multiple sets by attending even on their own.