Why not use them to create your own fleet?
Unless you are not part of a guild/Fleet already, I could see this making sense I suppose. But in this game, I plan on hanging out with my STOFleet Command mates, and pwning some Klingon Faction

behinds! There are plenty of Fleets registered on the official site as of now...so all this talk of keeping old ships would only make sense to me if they were Fleet owned and made available to new members that join your existing fleet.
Besides, how am I going to become Emperor Khyron, Master of the Universe?
Masters of the Universe is a completely different game, right?
