To me, glass quality is most important. Weight is an issue when hunting the mountains. Down South, where I hunt 95% of the time, 14 power becomes unusable on hot days as mirage clouds the picture. I don't shoot competition so I enjoy hunting scopes. I have no problem seeing/shooting a 150lb whitetail or 200lb hog at 250 yards with my 2-7s. That said, a 3.5-10 serves most all my purposes for hunting out to 500 yards. Once sighted in, my Zeiss, Leupold & Vortex hold their zero very well. Utilizing the ballistic-type reticles, which I've found very conducive to hunting, I never need to "dial in" range to make a shot. Takes too much time, IMHO. So, yes, too much magnification or weight can certainly be a problem. If you are target shooting and only carry your rifle from car to bench, giant scopes have their place. Hiking 10-20 miles, up & down hills in true wilderness will make you appreciate a lighter scope. My 35 year old German-made Zeiss Diavari 3-9x36 continues to be one of the finest hunting scopes I've ever owned.