Crack in your MacBook's screen? Often it's less serious than it looks. On many MacBook Pro and Air models, only the outer glass is broken and the panel underneath keeps working just fine. If that's the case, a glass repair is enough and you keep your original Retina display.
If the damage goes deeper — think lines, blotches, or a dark band across the image — the panel itself is affected. Even then, the whole display lid doesn't need replacing right away: at FIXNOW we open the lid and replace only the faulty LCD panel. Your own housing with hinges and camera stays exactly as it is.