I dont think the stuff you slap on is a matter.
However, I know the high quality Es have their cabinet built by hand, which ensures that the contact at the edges a big better than the other models. I dont know which level this starts from though. You better find out how much it costs to upgrade all the wiring.

By the way. the new ANs have a full vinyl wrap and no grill or holes for the grills. The one you see on the website is the old one.

I must say...ANs website really sux!
The information is outdated, and I cant find half their products!

Hey...Do I see a magazine under that speaker stand?
Thought people would use more stable things such as a textbook if they wanted to give the stand more height.