it depends on what your final goal is. Me personally, my local pro-lab asks for my files in sRGB (and produces fantastic results), so I just shoot right to sRGB. aRGB has a slightly wider color gamut, but nothing that ever changed the overall value of one of my images. Since I shoot in RAW, I could always swap back to aRGB at a later date if I needed to anyway.
|Waffles with fruits by Coolinarka|
from Food photography (desserts)
|Vestrahorn Frozen Reflection by Will B Milner|
from Ice cold