Funny you should mention the Magnus series, as I just saw that announcement on their website earlier this morning while looking up specs on the ER scopes. I imagine they're extremely nice scopes, and no doubt are priced accordingly.
I like the power range & objective configs they chose to go with! Interesting they went with a 6.7:1 zoom ratio, evidently aimed at one-upping Swaro a little.
I have little doubt 3X and 4X erector variable scopes will gradually become the minority design as more manufacturers get on the high zoom ratio bandwagon. I wouldn't be surprised to see Zeiss be the next to introduce a 6X or greater scope series within the next couple years.