Uuugh, yes there was only one colossus, and there was many saths. But, this is what happens when you venture into new kinds of shipbuilding...you start out with one ship until more can be built. I'm just saying preservation of the colossus should be dire until more are built, after that preservation should still be dire. That's one of the things the gtva was using the colossus for was to strike fear into the ntf, that jugg was unbeatable, and will eat your destroyer for lunch, and it does that. After that keep the damn ship alive and kicking, well, the only thing the enemy sees is a very possible situation where that jugg will come back and rape them up the ass, because if you do it right, you can make the colossus seem to the enemy as a ship that can never be destroyed and be extremely feared. The enemy would just be like, holy ****, that damn thing just keeps coming back!
But yes, when you start a new daunting ship design you start out with one of that type of ship until another is to be built, the colossus is effective and could use some minor tweaks, as well as the hecate class destroyer needing some minor tweaks(there's only a few of those in fs2 because they're new). In retrospect if the gtva made another colossus it would be better, serve it's purposes even better, survive better, and be applicable. The gtva shouldn't shy away from juggernaut designs because they've had one designed. I'm sure in the 20 years it took to build the colossus they've figured out ways to speed up and more streamline the construction of another juggernaut class vessel (20 years to build a vessel, you will figure out different and better ways to build something that your building for the first time a second time). So the next time the gtva would build a juggernaut, it would be built in a faster time period from previous experience and learning what to improve upon building time, and it would obviously be more powerful, it might not be as strong though. Look at the hecate, it's like a disposable destroyer compared to an orion (it's like those disposable cameras you buy at the store). If the gtva could make a disposable juggernaut, that would be quicker to build, but not as strong armor as the colossus. Even a disposable juggernaut built in less time than the colossus, would still be a match, and an enduring ship, and you could get more of them out there faster. I'm not saying sathanas fleet, i'm saying like maybe 5 juggs.
After that, think of the other usefulness of a juggernaut could do. If the colossus hadn't been fighting ntf, i'd send that ship into the unexplored nebula. Like what people said, it's like a mobile installation, it'd be great for exploration. It has tons of fighters, good firepower for destroyer size vessels and for juggernaut size vessels if a game plan is devised, it has a lot of people, it's big, and not weak like hecate. Juggs for exploration purposes could leave home systems and not need to come back for a long time (juggs for longterm exploration). That's my view if juggs aren't only going to be offensive.