That's weird you guys have fogging issues. I have been wearing the Stockholms coming up on three years now, and have had no issues. For myself, contacts and laser eye surgery isn't an option either...
Back to the topic at hand though, imo, prescription goggles aren't worth it. As mentioned, fogging is an issue and as well, how are you going to see when you take your goggles off in the lodge. Some of you guys may be lucky enough to be able to see by squinting, but not everyone has that luxury. Just some food for thought.