I tried making stock for a while, but this is what I noticed about making stock myself:
1. It became this huge event, like Sunday would be Stock Day! Only stock isn't really that fun, it's just boiling vegetables for a few hours.
2. Since I always made vegetarian stock, I never noticed it to be that flavorful.
3. I would spend all this money on veggies and parsley but even when I made double batches, that would still only be enough for maybe two batches of soup, and dammit, I like to make a LOT of soup and it was sad to see my stock making efforts only go so far.
I talked to some friends who admitted they just used the canned stuff because it was so much easier and I said, to hell with homemade stock! I still had concerns, though - mostly regarding waste and sodium content. I solved the former problem by using bouillon cubes instead of cans or cartons. That sodium was still a concern, though. 1 cup of stock (prepared as directed) contains 35% of the daily recommended amount of sodium. Gross. So I tried to alleviate this by putting in more water than directed, figuring everything was okay.
So anyway, the other night I was prepping veggies so I could quickly throw together some lentil soup after getting back from yoga. Since I was making tea already, I figured I'd boil some extra water so I could dissolve the bouillon cubes beforehand. I came back after a while and found this:

I stared at it for a few seconds before realizing that the layer on the bottom was a CENTIMETER OF SALT. EW. I tried to make myself feel better, remembering that I was going to be adding 4 more cups of water to that, but it was a pretty frightening display of all the gross things in our food.
Now, this is the point where I'm supposed to say, "And I will never use pre-prepared soup broth EVER AGAIN!" but the truth is, it's so convenient. Also, when I actually made the soup, I added more salt immediately, so who knows if I'll ever learn. But MAYBE I'll try taking out that stock pot again. Maybe.