Is everyone fine with the current exchange rate of 1 singularity core for 3 singularity torpedoes? Personally, I find it to be a bit of a rip off, considering how tough and time-consuming Battleships can be to crack. Compounding this is the fact that the Fury costs you 60 alenium and $600,000 to build, vaporizes the the bath water, baby, and pretty much the entire house, and is essentially useless once you run out of torps for it.
Anyway, I have some suggestions that could make the Fury a bit more cost-effective, so if you agree with me, read on. If you think the current system is hunkey-dorey, then you can skip right to "lol l2p."
1. Increase the number of torpedoes granted by a singularity core up to 6-8. Probably the simplest and most easily-balanced solution, and I think quite logical, considering you're extracting energy from a black freaking hole.
2. Eliminate requirement to build singularity torpedoes, and increase Fury's reload time up to ~12 hours. Now, in order to justify this I'm going to totally fan-wank, so anyone who's not down with that divert your eyes... now.
Okay, so a singularity core is basically a black freaking hole, right? That's quite a bit of energy, assuming the average black hole eats a star or two, maybe a solar system, and of course complete donkeyloads of photons during its lifetime. So, even if a singularity core contains a tiny percentage of that black hole's energy, it still hold enormous amounts of energy, "enough to power our entire civilization for decades," according to the Xenopedia.
Now, a singularity torpedo warhead would probably be around a 100 megaton device, which, compared to the amount of energy probably contained in a singularity core, is nothing. Basically, you could continuously extract energy from the thing, bottle it up in a torpedo, and continue to do so for years. However, it would take time to extract the energy and manufacture the torpedo, hence the 12-hour reload time.
In terms of gameplay, it would still be completely impractical to spam Furies, for obvious reasons. So you wouldn't be able to (easily) create a late-game 24-hour Fury murder-train. And even if you could, you would receive nothing in return.