Hmmm - I see your point. The WTBTS may have the assets, but doesn't want to 'pay for itself'? (let's face it - with the 'end so near - yet again - they could take the view that Jehovah provided for them by amounting assets knowing they'd be needed at a future date?)
As a JW, I'd have been gobsmacked to discover how much property the WT holds - yet current JWs (in my experience) believe they only own printing presses, which are necessary.