You would be amazed how quietly you can stalk in lighter, less stiff boots vs tall, stiff boots with thick soles. When covering miles while scouting and hiking it definitely is nice wearing a lighter, more flexible pair of boots. The new products used in today's boots are generally lighter with more shock absorbing features.
I bought a pair of Kennetrek Mtn Extremes and returned them the day after I tried them. They were super stiff, heavy, with extremely thick soles. I felt like I was on stilts trying to negociate steep, rocky terrain. They are about the stiffest, heftiest boots I have ever tried.
I have a pair of Lowa Tibets that are similarly taller but still fairly heavy. They also are difficult to stalk quietly because of the weight, stiffness, and relatively thick soles...although not nearly as bad as the Mtn Extremes. The only time I use my Tibets is in really deep, wet snow due to being taller than my other boots and they are extremely waterproof. They are bomberproof since they are all leather with few seams.
I have around 5 pairs of different Crispis. My preference is lighter weight, less stiff boots. I prefer them way over stiff, heavy boots even when hunting steep, rough country like Alaska dall sheep and mtn goat carrying hefty loads. My legs are thankful at the end of the day with lighter boots and I can cover a lot more country in comfort. I find this even more important as I get older.