Hi,
I have a similar question about the waiting game, so I don't want to create a new thread. Is the "waiting" vs. "buying" trade-off still the same for high-performance laptop applications (e.g., graduate school in statistics, geo-stats, parallel processing and multi-GB datasets)? It seems like the 5th gen innovations are mostly for ultrathin and fanless applications, which means that I should buy 4th gen now (will it even be possible to go fanless if you are doing multi-day computations and parallel processing?). On the other hand, the just-released DDR4 seems to be a significant innovation that will be very important to users of large datasets; so geo-stats/big-data users like me should probably wait until late 2015 or early 2016 for a >$1300 higher-end purchase?