On a serious note regarding football matters and Spurs, the new ground went roughly 100% over budget (not unusual for a big project to go over but 100% is bad).
It cost around £1B to complete at a time when Spurs had a great manager and were flying/competing in the league and Europe. Of that £1B i am prepared to guess (and it is only a guess) that the whole sliding pitch and NFL under pitch (plus additional extended changing rooms) cost around £200M.
That kind of money would have given the manager a good chance to improve the team further and strengthen the sqaud (he was crying out for backing) which could have led to Spurs actually winning something and making a name for themselves in the sport they are supposed to be in.
It would also have probably kept them in CL qualification places which is worth between £30M and £60M per season. Instead they have neglected the team and thrown an extra £500M into a hope that the NFL and concerts will pay the same £60M per season that the CL would.
Business man my arse