The logistics of that Manchester City Council proposal doesn't really add up, either. To make a 41,000 seater stadium into an 80,000 seater stadium, would have been a complete re-build. Something that would have cost half a billion quid to build in 2003. Even with the council going halves, nobody had that sort of cash up their sleeve twenty years ago. And then you had the local residents to appease, poor transport links to the site.
The old gasworks site was not particularly appealing to anyone at the time. As we all recall, the site of the new training ground complex was a dumping zone for industrial waste and scrap metal, and was privately owned.
Also, have you seen how much property that United own in Salford Quays/Trafford park. They own the freight terminal next to their ground and all of the industrial estates on either side of Wharfside way. They've been secretly buying up property round there for years. Back in the David Gill days.