Bingo! If you're going to shoot at 400 yards and farther, you should plan on purchasing a good laser range finder, no matter which scope you settle on. If you don't have the range down pat, it won't matter which version or model scope you purchase. Buy a Leica 1200 range finder if you're content with limiting your shots to ~ 800 yds. Buy a Leica 1600 if you want to range and take shots out to ~ 1250 yds.
some hefty prices on those rangefinders.. (at least to me) what would be the disadvantages of buying a cheaper rangefinder? such as the bushnell 1,000 or 1,200 in the $250-$350 range