Hello Scroogedude,
We have noticed that the Kinders BBQ sauce is not available year round. It tends to appear around April and disappear around Aug/Sept at the end of summer....We buy a few packs when they're available each year to last us till next year. Sometimes, I wonder if Costco has turned us into hoarders? :)
If you have more than one Costco in your area, maybe you can try calling them to see if any still carries it?
Regards,
Olli