I can cut it pretty fine when it comes to evaluating binoculars in terms of performance and features, but I also know, from a lifetime using binoculars, that choosing a binocular is also a matter of your lifestyle. I'm a good example. As an avid (okay, insane) bicyclist, there is no way you can tempt me to drag a 42mm binocular with me on the bike trail and even my 32mm stuff tends to get ignored, these days. Talk to me about premium compact binoculars when I bicycle. Sure, I give up some performance with a compact, but a compact will always be there when I need it and that's the biggest test of all for a binocular.