A lot of custom rifle builder's consider them as being much more elegant,streamlined.....and prefer them to the exaggerated look that ANY objective bell presents.Generally,higher $$ rifles.
On slightly more practical terms...
>This particular 1x4 "Loophole"....is easily used down into "feet" of distance.IOWs,put a target at 20'...scope on 1 or 2 power....BLAMMM!
>Next up is on rifles that get carried more than shot......like 99% of big game rifles.It's a weight thing
>Hard kicking rifles,especially lite rifles,are really hard on scopes.....the smaller/simpler the scope.....the more abuse it'll take due to recoil.
>Most classic rifle stocks were designed with "irons"....These scopes mount the lowest,making for a much more natural,"point"
Now for the opinion.........Just like big fat tyres,handgun brrl length,rifle bull brrls,knife blades,etc.A lot of folks "get past",.......my ___ is bigger than yours.So it is with scopes,simple elegance vs big and fat.