Smartphone companies have it in their heads that we want super thin phones. I think that's why many of them make under powered batteries. Most of us would be fine with a slightly thicker phone with a big battery that actually lasted a full day under heavy use. I had never even heard of the Lenovo P2 until you mentioned it. Other than the crappy camera, that seems like a good phone. For me, the lousy camera would drive me nuts though.
The talk of status symbol with new phones is true to a degree but you kind of sound like the guy who drives a Toyata Corolla who is talking smack to the guy who drives a Corvette because the Corolla has navigation, bluetooth too but gets way better gas mileage than the overpriced, overpowered Corvette. Lol. Some people want maximum performance. If you're happy with your P2, that's great but I'm not sure why you'd come on the S8 forum to tell everyone that they got this phone as a status symbol. It doesn't really bother me but you're obviously going to antagonize someone. Probably what you're going for? Lol
As far as glass backs go, they are kind of annoying durability wise but they feel much better than plastic while still allowing for wireless charging, which is kind of a gimmick but people really seem to like it. I only use my wireless charger for overnight charging. Poor battery life is only a minor annoyance. Unless you're on a week long hike in the woods, how often is it that you aren't near a charger? With normal use, I can get a full day out of my phone easily. If I use it really heavily, I just pop it on the charger in the middle of the day for a half hour or so to top it off. I have a charger in the car, at work and a few at the house so it's really no big deal to throw it on the charger for a while. Fast charging is... Fast. If I'm streaming a movie from my phone to my TV, I'm right next to an outlet.