I look at this way, if you get it right in camera that means less time editing. Which means you'll have more time to do the things you love (unless you really love sitting in front of the computer more than your camera).
It's easier and quicker to get the majority (if not all of it) done in camera. For me, editing starts before I take the photo - lighting is key. But so is understanding your camera settings and how to use them to achieve the look your after. Also, you don't need expensive equipment either.
There are tons of articles out there showing how to make do with home made reflectors, and free light sources - like the sun. For that first photo you could have easily placed your objects near a window for natural lighting (used a home-made reflector to bounce light into the shadows). Or another setup I like to use is shooting in my garage; place your items on a small table and open your garage door, then funnel the light with home-made gobos, reflectors (aluminum foil on cardboard), white sheets to diffuse the light, etc..