when you throw names like swarovski and leica in the mix you're climbing into a whole new bracket of quality. the glass clarity, glass quality, waterproofness, shock resistant, and light transmission get bumped up quite a bit. personally, i do not think that 99% of us on this site NEED binoculars over $500. if you spend long hours glassing then you may want to get the optics over $500. generally speaking, we had a rule at scheels with optics regarding quality and price. you get what you pay for in optics that much is for sure. anything in the range of $10-$150 is LOW end optics. heavy, bulky, fogs up, etc. mid range quality is $200-$500. most consumers that take their hunting, bird watching, etc seriously go with optics in this price range. you can start to bump into optics that are actually waterproof rather than water resistant. rain will generally not hurt any optics in this range. what really sucks is that "mid range" optics are not as shock resistant as we'd like them to be. just knocking a pair of mid rangers over can sometimes knock one of the lenses out of whack. of course, this can happen with any of them and that's what warrantys are for. when you start getting into optics over $600, you're starting to get into "high quality" optics. the light transission, eye relief, weight, shock resistance, waterproofness, and warrantys are all excellent, but not worth it to the average guy in my opinion. in my opinion and actual experiences the only people that "needed" the high quality optics were only trying to "keep up with the jones'" or trying to impress their friends. granted there were a few doctor types that were going to africa or on a trip of a lifetime and those optics are what they wanted.
now, comparing the $1500 swarovskis to the $300 monarchs is sort of a stretch. you will definately notice a difference in them in clarity but the most noticable difference is at dusk and dawn. light transmission with high end optics is just awesome. a guy can go on and on about the pros and cons of different optics so i'll try and wrap it up here.
in my honest opinion, those monarchs are VERY GOOD optics for the price. i would recommend them to anyone at any time.
camoman, as far as getting 8 or 10 power binos goes, its sorta up to how you hunt. if you hunt areas where you glass long distances then you might want the 10 powers. personally i usually am sitting somewhere i can only see 100 yards, if that, so the 8 powers are exactly what i want. i get a bigger field of view and the clarity is excellent. here's a suggestion, buy both the 8 and 10 power binos, take them out into the country somewhere right at dusk and glass with each of them and notice the differences. then return the one you don't want. if a store wouldn't let you do that then i'd go to a different store. that's about the only way to see exactly what you want.
any more questions, ask away.