I have a bunch of 16 gauge shells now, I closed out an estate of a very avid shotgunner and got quite a few flats of various shells, wads, etc. I sold off some and a Ponsess Warren reloader, some other odds and ends and pretty much got my money back, plus still have a bunch of shells, but they won't last forever, therefore the reloading. The 16 and .410 seem to be about the only gauges worth reloading for cost wise.
Another part of this is most of the public land for hunting around Milford Lake (where I hunt mostly) has been non-toxic shot only. Probably should just use a modern gun and steel, but modern guns are boring. I picked up ten pounds of Bismuth 7 1/2s, but the stuff is expensive so I want to learn the reloading process on lead.