If you're holding out because you think that next years hardware updates will fix the "lag" issue you might want to think again. "Remember at 2880 x 1800 there are simply more pixels to push and more work to be done by both the CPU and the GPU. It’s even worse in those applications that have higher quality assets: the CPU now has to decode images at 4x the resolution of what it’s used to. Future CPUs will take this added workload into account, but it’ll take time to get there." http://www.anandtech.com/show/6023/the-nextgen-macbook-pro-with-retina-display-review/8 I just find it amusing that people want to bash on the "lag" because of this review and then say that next years model will fix it... yet the same review that people use to bash the "lag" don't realize that he even states that in terms of hardware it'll take time to get there for it to be "buttery smooth".