With the Note 1, I had a cover, but it felt as though it took away from the beauty and ease of access and use of the phone.
The minimal risk of getting a scratch doesn't outweigh my need for fast and easy access to productivity. I even disabled my lock screen. (What a waste of time, to unlock the screen every single time you pick up the phone to do something, which, for me, is a great many times in the day, if you count every time the screen goes off and thus needing another unlock otherwise. Multiply that over the rest of your life).
Also, when I type, and the flip cover is therefore folded back on the back of the phone, it reduces the stability of the phone in your hand. I use both thumbs to type and operate fast, and nothing should impede that for me, unless it is of great importance.
A cool thing about a nice flip cover, is that it looks real snazzy and exec.
But the phone on its own also oozes a lot of jealousy inspiring sex appeal. My dark grey phone looks very exec already IMO.
My phone (especially now with the bloody awesome Note 2

) is like an extensions of my body now, I need unfettered use to it! I don't put a flip cover on my hands, and neither on my phone. (OK so I basically put 'covers' [shoes] on my feet, but hands are used for tasks of dexterity, just like a super smartphone, so I feel my reasoning still stands

)
Nobody asked for it, but that's just my 2c's about the cover. I just had this weird need to express my thoughts.
I think if you can't find one, don't stress too much about it.