One of my Uncles stopped going to City a couple of years after they tore the Kippax down because he said the club just wasn’t the same anymore without the Kippax
It pretty much signalled the end in terms of regular attendance for me too, sitting down at football is just not right. I did go to most games home & away in League 2 but that was out of an overpowering sense of my club needing me, continued the next season but I think Blackburn away (what a day) was my last game until 2006, Villa away when Micah rose like a salmon for that late equaliser.
If they built a terrace and allowed smoking I'd be happy to join the queue for a season ticket, so I guess I won't be along any time soon.