Galaxy S6 extremely poor build quality

So.. Being a loyal Samsung customer for quite some time now I was extremely excited to get my hands on the Galaxy S6 edge, more so because I got it for my birthday.. My initial impression of the device was good, I was a bit concerned about how fragile it looked but I dismissed that with the thought of getting good cover for it. Sadly, I didn't have the time.. And today when my phone fell against the metal button of my jeans (a drop less than 30cm onto my bed ) the result was the back glass having a nasty crack on it.. I'm extremely disappointed that my R15000 phone is ruined by a tiny metal button.. As elegant and awesome as the s6 is, I think the build quality is extremely poor. I mean no disrespect, it's a great product but the build quality definitely needs improvement if it's going to be used by anyone with an active lifestyle, I'm disappointed.