@Wyatt Smith - it’s amazing where some hunters will decide to save money - buy a $7 box of slugs vs $15 (save $8 = $1.75 per slug? That you might shoot 2-3 slugs per season??). I’m glad there are cheapo’s out there - they leave more deer alive..
Unlike the quality expected for rifle and handgun ammunition and firearms. Shotguns are not considered precision big game hunting firearms. Barring competition events: Shotguns are primarily meant to use shotshells for hunting small game, upland birds, and waterfowl. With very limited use for deer hunting in archery, muzzleloader, and shotgun only states.
Although improvements such as better quality slugs, rifled barrels, use of rifle iron sights and scopes, and meeting hunters in shotgun only states demands for better quality hunting shotguns have changed the dynamics of slug guns from being more than just 50 yard range brush-woods guns, to open agriculture and field 100 yard+ guns.
The reality of it is most shots on deer with slugs are still well under 100 yards. Slugs are not in the same ballistic realm as bullets. But more in the ballistics realm of a round ball being fired from a muzzleloader.
The concept of the more slugs costs the better the slugs are is a fallacy of sorts. With the quantity of older shotguns on the market and it hunter's possession these firearms aren’t designed to handle modern high pressure slugs. Thus so called "cheap" slugs are better than having an "heirloom" shotgun blow up in one's face.
Since the Demcommies out of control inflationary economics, the pandemic, the anti 2A and anti hunting culture, etc., everything has become more expensive. Even "cheap" ammunition is as effective today as it was decades ago for hunting using older shotguns that the slugs were meant for,....and in modern shotguns that can effectively...accurately....be used in.
As for a person only shooting 2-3 slugs per season....that depends on the state/province hunting regulations. What big game is available, the hunting conditions, the hunters preferred method of hunting, and how familiar the hunter is with the shotgun setup.