The breaking glass is not the problem here, the problem is the repair price. There is no Apple Care available to buy in my country, so you have to buy 3rd party insurance. The 3rd party insurance for Max costs around $300-400. So you with the insurance you are at $2000. Designing the product the way it is almost unrepairable is not eco nor customer friendly. I have the money for Xs, but I changed my mind and I will rather build my first hackintosh. I don't think it's impossible to build a well repairable thin phone with glass back (look at Samsung repair price of the back glass)
My iPhone 6s is fine. I was thinking about how I use my Apple devices – Macbook Pro / iPad / iPhone and I have to say, I spend like 60% of time on my MBP, 25-30% on my iPad and only 10-15% on my iPhone. I'm a developer (webapps) and I recently got interested in developing games. My base MBP 15" 2015 can't really handle working with 3d apps (Blender / Unity) well, so I will treat myself with a nice hackintosh (6-core i7 or maybe 8-core i7 9th gen intel, GTX 1070 Ti or maybe 2070, 32GB ram and a lot of storage) for a little more than the price of the XS. I might be buying XS / XR after the X-mas, if I had some extra cash, but I don't really want to.
I love Apple ecosystem, I like iPhone, but $2000 is just too much.