I tried some in my new Benelli Nova slug-gun (pump). They felt like squib loads, but if they would eject better, (that was the problem area for me), they could be a high capacity in-home solution for some of you. They just "dribbled" out - about one in four needing digital assistants, (pun intended), to leave the gun.
The Nova really tossed regular shells over next door.
The mods, if cheap and fast, would be worth it. Think "spousal unit" here, if reliability could be brought up to par. You may not always be in town.
They were, BTW, Aguila, a mix of #4 and #1 buck in each shell, and could be looked at favorably for low penetration of structure, (and neighbor's structures, compared to, e.g., full house slugs).
http://www.impactguns.com/store/aguila_minishell_dual.html
About the price thing, though, Sellier & Belliot offer a very affordable 2-3/4" 00 Buck ten pak, that I think are fabuloso!
My rifle sight barrel made an IDPA A-zone sized group at 10 yds, perfect for home defense. I would like to reach out farther & tighter for other applications, so I guess I will be looking for a short tight one, perhaps with interchangable choke tubes!