We got a Kirkland ham once but I don’t think it was spiral sliced. I think maybe the ‘master carve,’ it was a smaller cut. It was delicious. I can’t speak to the Black Forest ham you mention but for twice the price I’m probably going Kirkland.
Oooh. We got the Jamón ibérico from Costco a couple years back. I don’t remember the exact price but it was somewhere in the $200 range. My son’s friend’s dad grew up in Spain and was able to thin slice the entire thing for us. (I guess that’s just something you know how to do if you’re Spanish)
I can’t speak to what flavor you’d prefer. But price-wise, the Kirkland ham is only cheaper if you’re going to eat the whole thing. If you only going to eat half and toss the rest, it might be more cost effective to get the smaller portion.
Here’s an article about this practice, which is deceptive enough that Consumer Reports and Center for Science in the Public Interest have lobbied the FDA to no longer allow producers to label things “Nitrate free” that use celery salt as the nitrate. It’s very misleading.
Maybe even worse, companies that use nitrites/nitrates are subject to upper limits on how much they are allowed to use where companies that substitute celery salt can use as much as they want.