Should I get the samsung gravity or keep my j706?

I really want the samsung gravity because it's nice looking and has a QWERTY key pad, a camera, and I hear it's a good phone. Should i get the samsung gravity or should i keep my samsung j706?Should I get the samsung gravity or keep my j706?
The Samsung Gravity is the only full QWERTY slider feature phone, and clearly gives it an edge for those who want the full keyboard but not a smartphone or a Sidekick.