When you open an EZ Page for editing with CKEditor, if it has an iframe to display video (for example), the Editor simply silently clobbers that block of HTML. If you're not paying attention, as soon as you save you lose your content.

Curious to see if someone has built a check for conditions like this, or has anyone had success buying the commercial version of CKEditor? The fact that they don't just list a price ("call for a quote!") makes me a bit nervous.