Because I already had a Digicel phone. Plus was hard to beat the price of $5k (no tax), with $4k worth of credit and 1 month data plan.
In addition, my main use for it was for the wifi. Had a software for church that allowed me to present songs/verses on a big screen and had the ability to be controlled by a mobile app.
Since this is my first smartphone, I didn't have any heavy demands of it (like Skype, youtube, facebook, twitter, pictures, etc). So I am happy with it.