I think so. The strength of the league just follows the strength of the economy. the Spanish league is flourishing due to several of the worlds best players playing there, some of whom are blatantly just after the low taxation of their pay. In England there is a 50% high earners tax which is why some players are on stupid amounts, Adebayor is on £150,000 a week, but after tax it amounts to less than £100,000. he wouldn't need to be paid as much in other countries to maintain his wage after tax. Speaking of Adebayor, city's money can't hold out forever. The owners of the club are the royal family of a nation massively in debt yet still spending freely!