I've had four binoculars. The most used was a 7 x 35 with mediocre optics. But it told me "exactly" where I was in the sky. Then there is my oft used Meade 10 x 50 which is my go to now. But I have a 15 x 80 which I bring out only when I travel to dark sky sites because it is too heavy to hold in light polluted skies anyway. Not enough plus. I had a pair of 4 inch 20x binoculars and they were marvelous on those trips to the rural out west and to upstate Vermont. But they were so heavy. Lovely aluminum box too. But I gave them to a distant relative, a young man studying sea mammals on an ecology ship. I hope they are of use to him. But what is new. Those image stabilizing ones didn't do much for me as I could always hold my binos leaning against the side of a building or a column or something and get the same effect. What I'd be more interested in is image intensification. Is all that secret squirrel stuff now... only military use and all that, or is there something amateurs can use in the US without getting into all that nonsense. For telescope eyepieces that are image intensified you have to give away your first borne to buy one and they cost more than some used cars.