you must not live in a ' St. P's Day ' area.
again , the above represents states , not cities . NY and Chicago used to have significant parades.
I lived in Chicago for several years , an Mayor Daley , the Original ,
https://en.wikipedia.org/wiki/Richard_J._Daley
made a big deal of St.P's day , stenciling on each crosswalk , in green ,
" Mayor Daley invites You and Your Family to the St Patrick days parade "
but that's a bit of Machine Politics , at its peak Bread and Circus.
here , in the BOS area , Stop & Shop has had the best deals on CB's , for years , and good quality .
Im very surprised its back @ $ 1.49 //Point // lbs.
Market Basket , a less expensive store : $ 2.99. and Roche Bros : $ 7.99.
would be interesting to know , if we had any Irish Posters from Ireland , what it goes for there.
and to answer your question , its a niche item , doubt there are any USA National brands.
This I found quite interesting , never have thought about it at all :
https://www.authenticvacations.com/corned-beef-and-cabbage-the-shocking-truth