If you shoot jpeg then yes get it right in camera, but for us RAW shooters why should we bother?
Its easy to fix it post but come on, who wants to have to colour correct all the images you took on your last shoot, yes with Adobe Lightroom you an fix one and then replicate it across, but its just another job you have to get done.
Get it right in camera.
Once you have everything correct its then easy to work from a common starting point and colour grade to how you want it.
