if you plunk down fat cash on a super safe, the sheath is prolly gonna wear down just about as fast as with some cheapo rope.
i used a beal 9.7 non-dry for 3 straight years on everything from alpine to sport, and still sometimes use it. best part is i picked it up for 100.
if i were you, i'd pick up the cheapest 10 mil you can find, and make sure your biners are smooth and clean (old biners that get chunky eat rope. i just got on a route with permadraws, didn't check one, and it shredded on my new 9.4 sheath: sucky.)
But, having said that, you like most will lay out cash for the one with the best advertising shtick and the one that looks the coolest, which is fine cuz it'll work like any other.