I run it naked as well. I'm actually more worried about scratching the display since I haven't dropped a phone in many years (knock on wood!). I've been contemplating getting the S view cover since it doesn't add to the thickness at all, but I use the phone so much it would be such a hassle to keep having to open it (and hold it open while using it).
I'm insanely ocd about the display because it somehow got scratched on my last phone (gnex) like a month after I bought it, just by putting it display side down on a table. It bothered the hell out of me for the following 23 months straight. Scratch resistant my ass.
I've tried a few glass screen protectors but they eventually peel away at the edges and it looks horrible. Suffice to say I'll never put ANY phone display side down again, and I always have a death grip on it when I'm using it...so I'm good to go.