Actually you are completely wrong
Sorry, but ZOO TV was not all about production at all. It was all about the performance and the songs. This tour was innovative, energetic, classic, intellectual, funny, serious and spontaneous on every night. With a stage underlining the songs in a complementary way, being a stage for the band and the acting B-man.
From the first bunch of songs, mainly from AB (what a strong tour album compared to NLOTH!) with the beautiful reflection of UM or SAMTM after "One". Then to the change of the 'old' U2 on the B-stage varying the tunes to be played to the centre songs Bad/SBS-BTBS-RTSS-WTSHNN-Pride-ISHFWILF – a sequence never to be matched again, performed with pure conviction, aggression and feeling. Only to land then in the encore, that deserved its name, as the Mirrorball Man or the devil on platform shoes, singing songs of lust, love, despair, frustration and hope. U2 believed in their stuff back then, something they obviously do not do anymore today on the same level ...