Aside from what Enic paid for the club, they injected about £40m more which I think was used to purchase all of the land around the stadium. They also, at the time of making the club private, did a rights issue whereby they again injected more money into the club. This was a way of them getting control over the club without having to offer the same amount to all shareholders. i forget the exact figures, but it could be argued that all of this money was for training ground and stadium.
People (and this is not aimed at you billy) need to remember that Enic are an investment company. Their aim is to grow Spurs to get a return. I can say that as they have not taken any money out of the club save for a minimal dividend about 5 years ago. Hardly the actions of asset strippers, or people that want their return each year.