Still waiting for Friday delivery of my custom configured retina iMac. I'm so excited about it - haven't purchased anything else from Apple this year. It hit me - this is an example where Apple is leading instead of following. Think of the other big products they've launched: a smartwatch, bigger iPhones, etc. This is stuff that's been done and feels like a response to the market. The retina iMac is a true innovation. I'm amazed they solved the technical challenges involved and put it together for under $3000. I doubt this can easily be copied. Having owned a rMBP for the past two years, I already know I'm going to love it.