Everyone was telling Spurs that they had missed their chance to establish themselves in the top four when they sold Modric. Then again when they sold Bale. Then they were told that they'd missed their only chance to win the title last season. And once more, now that they've finished second to Chelsea this season. Funny how no one says the same about other clubs forever missing their chance.
As to Wembley, as many mid to lower table teams will be overawed by it as inspired by it. And those that are inspired might just play into Spurs' hands. It will likely make them more gung-ho and thus easier to break down.
The new stadium will have 6K extra (and much more expensive) hospitality seats; a further general access increase of 19K; some 16 non football events per annum (as opposed to none previously); and up to £20m per annum in naming rights. So even a conservative estimate would see Spurs' stadium related income rise by £60m per annum. And that will comfortably cover interest and repayment, with money to spare.
Besides which, Spurs have run an incredibly tight ship for the past 8-10 years or so while still growing and challenging. They also have an excellent academy to supplement the first team. And unlike at Chelsea or Man City, who between them have the best two academies, the pathway to Spurs' first team is understandably easier and consequently better established.
Agreed, though, that Levy's principle aim in the short to medium term will be to consolidate as a top four club while winning the occasional trophy.
Every club nicks songs from other clubs. And back in the 70's / 80's, fans of loads of clubs sang 'Oh when the _______ go marching in' and even 'You'll never walk alone'.