One good drop and you are fucked though. A simple clear plastic bumper case prevents that 98% of the time, and you can see the fancy finish just fine. Also since the lip extends over the front a tiny bit it helps prevent screen cracks as well if you happen to drop face down.
If it was some shitty generic Android device with terrible resale values, sure, I am with you. I definitely do not bother in those scenarios.
One thing I should have mentioned, I don’t do glass screen protectors on my devices, because the part you do touch the most is on the front, plus the clear thin plastic cases partially protect the screen as already noted.
(I put glass screen protectors on my wife and kids iOS devices religiously though)