I regret not seeing The Replacements live during the band's prime.
Toward end of the band's original run --- Orpheum Theatre, February 1991 (opening act Gear Daddies)… Something didn’t mesh with my schedule. Also I might have assumed I’d catch a show “another time,” not anticipating the group would break up a few months later.
Also I think Mats had a show at The Maintenance Shop (or some other venue in Ames??), maybe late-'84 (?), some of my friends attended, I must have had something going on “academically” that week, so I didn't go (show was not on a weekend, IIRC).
I did get to see Westerberg in his early solo years, mid-‘90s, in Madison, Wis. Fantastic show, small theater venue, tight set. For some reason haven’t found my way to one of his gigs since then (but my live performance attendance has dwindled gradually in recent years).