If you have the drawer space, what a wonderful idea! Instead of stretching and climbing to see all your spices in the top cupboard or on the spice rack, keep them accessible and visible in a spice drawer.
I have a huge pantry that things get lost in, I wonder if I could modify it a bit and have something like this. Pull out spice cabinets beside refrigerator? We had mentioned that there is space on both sides of our new LG refrigerator.