I lived in Sheffield during the 70's and 80's and the City Hall used to be a great venue for rock.
During that period we saw Lizzy, AC/DC, UFO, Scorpions, Judas Priest plus countless others.
Can't really remember how much the tickets cost but none of us were flush back then and I don't remember worrying too much about affording it.
In hindsight we took it all for granted but as they say.. youth is wasted on the young!