So, with a thread on reasons to buy a nMP, I'd try to be the contrarian. Reasons I'm not buying an nMP: 1) I bought a 4,1 in October 2012 (remember, that's when a new MP was just around the corner, haha, the good old days). Upgraded it with a W3680. It has a higher Geekbench score than the new low-end nMP - and set me back about half of what the nMP cost. 2) Let others burn their fingers first. The significant departure HW-wise might result in unforeseen issues. 3) The new GPUs are marketed as the best invention since sliced bread, but how well does that translate into real-life performance? Which apps will be accelerated and to what degree? Until these questions are answered, the possibility of choosing freely between GTXs, RADEONs, Titans etc. is nice to have. 4) I love the aesthetics of a closed box. I don't have any external drives connected to my current MP - instead I gradually expands the SSD and HDDs inside. I like the idea of expansion being cheap and gradual instead of big bang at purchase (or expensive, at least where I live) Apple "service" replacement of internal storage. You might call me "non-pro" since I don't have a storage array connected to the machine, but I prefer to have my long-term data on a NAS instead. With a nMP I'd be forced to have a storage array and PSU attached on the desk - and so far everything Thunderbolt just seems expensive. 5) The performance of the nMP seems under-whelming to say the least. The top-of-the-line nMP beats the 2012 with only about 18% (29721 vs 25208) in raw processing power. Remember when we laughed at the 2012 MP being "2010 tech"? Well, then the nMP seems only able to beat 2-4 year old tech by 18%. Comic. We cannot blame Intel alone - Apple could have made DP an option, as it has for many years. It seems the CPU Apple use (E5-2697) can be used in a DP configuration, which could result in a Geekbench score above 43000. So, if you have money to burn (even if you're a pro and can deduct the expense from your taxes the nMP still costs money) the nMP might be the best thing since sliced bread. If you have a very old MP or if you just want the latest and greatest, the nMP is a great buy. Personally, I'll probably wait till 2015 or 2016, and might at that time buy a top-of-the-line 2012 MP on the cheap - or a nMP when it has proven it's worth.