I've been thinking about getting a 30" ACD, and it doesn't look like the new model is coming out anytime soon, so I may settle for the old one. I've been looking at the refurbs, and they're discounted quite a bit. Has anyone had experience with Apple refurb monitors? Any scratches, scuffs, etc. on the display or case? Does anyone know if they replace the casing by default? I'd really hate to spend $1,000+ and have blemishes. Thanks!