Often wondered how practical and worthy of purchase these are? I usually close one eye when looking thru my binocular and I would love more power to see between 3oo-500 yards. Weight, bulk are big issues with me. I saw a nice Brunton 10x? and the price was good- maybe too good! I have a nice lite 6x35 for close woods activity but I often can see 500 yards from my stand and 10 power would be better than 6. Any thoughts?