It is so sad to see that steep decline. I really saw him as a pure Ballon d'Or contender and truly hoped that he'd take over in Real when Ronaldo left. But as we all can see that it didn't happen at all.
Spurs took a gamble and it's totally good call. Why not? Okay, he has crazy wages but still worth a try. It's Bale, isn't it? If he flops, then okay, worth a shot and if a success, then superb deal it is.
He won too much with Madrid and was very important for them in two CL finals. He has conquered it all, to be honest. Yes, Premier League title would be a motivation for footballers but not for him. Or he feels that Spurs isn't a contender. Maybe be is still in transition and in the 2nd half of the season he'd show some glimpses of his old self. I'd be super happy to see him do that. His technique, dribbling and shooting is still world class and would be amazing to see these features this season.