Let's see...to answer the questions:
Tony - I actually love them. I think the look and feel of the Penny is the best, however if you have very large eye sockets, you might feel they're a bit small for you. These are just barely on that verge for me. The Juliet is a really tight, snug fit. Works really, really well. I have little problem with fogging; it does occur, but not often. Also, they're kind of a tension-fit, so you need to be a little careful in removing them so they don't fall right off. But it's not a huge problem.
I'd say for anyone who is a really big fan of the movie or Cyclops in general, these are a must have. However, I might be the only extremist who will eventually get them molded directly into a pair of Juliet and Penny so that there are no seams and that I don't to ever worry about them falling off.
Sean - As mentioned, if you're a fan of the movie/Cyclops, they're very much worth it. Pricey, yes. But they're made by a movie fan like myself who just happens to have the skills for this sort of thing. So he's not exactly got high-end, mass production machinery. He has to pay for materials, time to make molds, cleaning up the final casts, painting, etc. So I can understand the cost.
Although, prop replicas is another slight hobby of mine, so I also have more knowledge of what kinds of time and money goes into these things. For example, I have the most spot-on replication of the De Umbrarum Regis Novum Portis, or the Nine Gates to the Kingdom of Shadows, as seen in the Johnny Depp movie, The Ninth Gate. It cost me $500, but was well worth the price to me.
These Rubies are in fact of the latest release. Unfortunately, I have not yet bought them, but our OPD is such a cool guy, he's holding them for us till we have the cash to grab them.
Jumpman - I believe that the Juliet blinders should fit just about anyone who can wear a Juliet, the Penny...well, the same is probably true. If the Penny sits on you very comfortably, then the blinders should be fine. If they're already a bit small, then I would probably not bother.
Hope I answered everyone's questions adequately. =)