Couple of points, 1) There's no way the 80m price increase is solely due to the steel price increase. I expect the 80m was a preliminary valuation and after going over the details the figure was adjusted, i think to 120m a couple of years ago. 2) Although as RP says there's no formal futures market the club could have negotiated an option to buy a certain amount of steel from a steel producer. Given the demand for steel at the time that would have been a difficult contract to negotiate. Besides, you can't expect the club to have sufficient knowledge of the steel market to fix the deal. 3) I seem to recall the new stadium would not be expandable. Seeing as ManU are finding their 70,000 stadium too small i find it a bit worrying if we're going to be restricted to 60,000 without the option of expansion. Or do the Mancs really have larger matchgoing fanbase?