Hi, I'm new here, and I've wondered about what Paladin describes my whole life. I grew up with the original pirates line, and we had some of the "disabled" cannons with the black breech-tail (and later the single piece non-shooting style of course). One day my dad found 6276 Eldorado Fortress at a yard sale that had two of the working cannons, and to this day I've always wondered why the working cannons were discontinued. I would love to know why. Maybe the answer is posted in this forum somewhere... I haven't found it yet.
On topic, I personally own around:
2 "disabled" cannon, brown base
2 non-shooting cannons, 1 brown base, 1 red base
3 new shooting cannons, red base
I hope to get one old shooting cannon (red base) to go with an incomplete copy of 6263 Imperial Outpost that I accidentally acquired (which I plan to complete via bricklink).
That doesn't include the cannons in sets my siblings and I shared, such as the aforementioned Eldorado Fortress and Caribbean Clipper.