Why did you choose your smartphone?

With so many different smartphones on the market (I don't need to mention them) we really are spoilt for choice.

You have your iPhone users, your Samsung users, your Nokia users and well you sort of have Blackberry users but why did you choose your preferred smartphone?

Was it the OS? the look of the phone? the brand name? the choice of apps or was the price at the time suitable for your needs?

Discuss...