I guess it depends on what he wants from his career. How many seasons do you think he needs to break the record? 7, 8? Not utterly crazy to think he stays to 30 then goes to a Madrid equivalent towards the end of his career.
That's the key - he's so young he could break the record and still have a number of years abroad if that's what he wants.
I dunno, I know I'm relentlessly positive about Spurs, I guess they serve up enough misery over the years if I didn't stay positive I'd be utterly dejected at all times, couldn't handle the lows without thinking tomorrow will be better