I think if he was clearly available, plenty of clubs would be in for him, and I doubt he'd refuse a chance to pay for teams like Juventus, Real Madrid or Barcelona. But we also have to think about the cost of replacing him. We could sell him this summer to the only bidder for £100m, and then immediately have to spend £80m of that (plus probably much higher wages) replacing him with someone like Zaha or this bloke from Spain. Or we could keep him for a year, publicly put him up for sale next summer when all of the top clubs have a new transfer budget, and still probably get £100m for him, with the chance that his value would increase further with a good season.