I simply am wondering what justifies such a powerful computer. I have friends who buy MBP retinas, simply using it for Chrome, Twitter, and maybe sometimes Photoshop. I use my MBP 2011, 8GB ram, 2.2 i7, and I feel as though I truly "need" it, as I use Ableton Live everyday with multiple third party VST's, and even with the ram upgrade, it still buffers, and there's constant latency issues due to heat. I've even replaced the fans and battery, and the heat is still an issue. I did a geekbench and got 2278 on the single core and 8000 on multiple. The new 15 retinas only get an average of 3028 on single and 11610 on multiple. I'm thinking of upgrading, but really, the geekbench marks don't seem to have a HUGE dramatic difference. Anywho, I simply wonder what you all use your MBP's for, and if you believe your use is justified.