From all I’ve read about this iMac, combined with all I’ve experienced, this is the real deal. There is no disadvantage to being an early adopter here and there is no major tradeoff. I am so happy this computer exists. This is the dream. This is Retina Desktop Without Compromise. And it is wonderful.
I hope Shawn is right. The only question mark I can foresee is the one around long term reliability & longevity. My 2007 dual screen Mac Pro is still going strong and hasn't missed a beat for seven years.
I wonder if the iMacs, with more consumer grade parts, will endure similarly.