I had the newest 10x42 SLC last year, picked them up for 1300. To tell you the truth I was kind of disappointed in them. Compared them to my friends vortex razors allot and there wasn't much difference. I just picked up a new pair of 10x42 els for only $200 more.. problem solved. I really like the new ELs, they are so much better than the original model ELs I've had in the past.
I believe these mavin and athlon glass are probably nice glass. But what worries me is where will they be in another 5 years. Minox, Pentax, Nikon, Leupold are just some companies that have made good glass for many years. On another note those vortex razors are good glass if you can find a good deal. Found my buddies for him for $700. KLS classifieds is another place you can find allot of good alpha glass on. Those guys wait years to draw a tag so they buy the best then sell it afterwards.