Free: Contests & Raffles.
Wow, I can honestly say that I could not tell a difference between the Euros and the Swarovski's! Had them side by side when I had to return my Swarovski's and opted to get the Euros at half the price! No blurriness on mine!
I'm a big fan of Vortex optics now. My dad bought me a set of Viper's this past Christmas and I was so impressed with them that I bought a Vortex ED 20-60x80 spotting scope as well. Very happy with both!