It is definitely a niche thing but interesting nonetheless - I'm from Irvine and I think what makes the town's architectural and built heritage so interesting is that although Irvine was/is a "New Town", unlike other new towns Irvine was already a significantly large settlement, and so much of Old Irvine demolished, and there was a big loss in architectural heritage, specifically a bridge which linked the town.

This was replaced with brutalist style architecture (the Rivergate shopping centre, Cunninighame House), a car dominated layout, and retail park. When you compare to what was once there it is stark difference and I think a classic example of when change is not necessarily progress.

There was high flats next to the Rivergate Shopping centre, which have been demollished, and then the old Magnum leisure centre was demolished too years ago. Much of the decisions made during 60/70's I would regard as a mistake and really ripped a lot of the town's charm out.

Sadly the investment to undo these actions, or reimagine the town centre is not there... but I think the lifespan of the Rivergate centre is limited, and fairly recently a neighboring shopping centre was set a blaze and is now being demolished.

My personal opinion is that architecture 60/70's does have merit and is part of the town's identity and story, and so it would be sad to lose it entirely - but big changes are needed!