How many times I read this one? "the next kernel will boost your GPU" and, kernel after kernel, the performance is more or less the same, and the new incredible features will be "merged in the next version". Always the next. For years.
Why are you so sure the 3.7 will do the difference?
I love the clever comments of people using non-rolling distributions bitching about their distributions not being rolling...
Why don't people set up separate /home partitions?
I've always done this, and from what I experience this whole "rolling distribution" vs "non-rolling distribution" is a nonsensical argument.
Format the / partition, and when the "new" operating system comes up after installation it inherits all of the prior settings that still reside in /home. It takes minutes to select the various apps I use, and the let the computer do all the work installing. Done. Now I'm on the "new" operating system, and it's a clean install which is good to do every now and then anyways.