How to buy the Best Badminton Racket?

I am a Badminton enthusiast. I try to play every other day. Badminton not only helps me keep fit but also improves my body's flexibility, endurance, and agility. Working out in the Gym keeps one fit but doesn't promote natural endurance, flexibility, which is achieved while playing Badminton. The biggest challenge is to get a good Badminton Racket to play with. In the US this game is not that popular so one has to visit a specialty sports store or go online. Contrastingly in the UK this game is quite popular and there are several websites offering great advice, price comparisons, deals, and other information about this game.