I just started reloading shotgun shells after 11 years of loading handgun/rifle. Bought a used Lee Load All (original) and a Lyman Shotgun reloading manual. Quickly realized that unless you get a "good" price on lead shot, it is cheaper to buy Challenger #7.5 or #8 than it is to reload them.
My local gun store (only one within an hour drive) charges $80 for a 25 lb bag of lead shot. Wads are about $20 per 500. Primers about $10 per 100. Plus tax. My used Load All was $35 but I had to spend about $40 (including shipping) to replace missing parts (bushings, primer seating pieces, resizing "die"). Definitely not saving any money here.
I enjoy reloading, and maybe I need to figure out a way to get cheap slugs or buckshot and reload that (I don't have any lead casting tools though) but unless I can find cheaper components, my first bag of lead shot may be my last (yes, I know of a cheaper place to buy components near Hamilton, but that is ~3 hours away and their hours don't fit my schedule).
YMMV, standard disclaimers apply.