Yeah, moisture would definitely be my main worry too. From what I've read, the films themselves are usually sealed between layers of glass, so direct ...

That's actually a pretty good idea, hadn't thought about listing them online. But I'm curious—do you guys find there's actually enough demand for old ...

I've been thinking about argon-filled panes too, but I'm curious—how long does the argon actually stay effective? I've read somewhere that it can slow...