Congrats! Mine arrives tomorrow by 9pm. Right now, it is on a UPS cargo plane over the Pacific heading to Alaska. 2 hours, 53 minutes until it lands in the country!
The RAM doesn't play as big of a role when opening or closing applications - its more in how the machine handles multiple applications running at the same time. Running processor intensive applications (photo/video editing, CAD/CAM, and the like) will run much better with 16 vs 8.
I dont do any of that - but I do run VMs, so 16GB allows me to allocate 8GB to theVM while retaining 8GB for the host. Also, I like to have top spec systems so my productivity isn't inhibited at all.
I've had my new MBP 13' for a day now and wondering if the 16GB Ram causes the battery life to be shortened? The 8GB Ram 13' MBP I originally had seems to have a longer battery life than this one. (using the same apps on both)