Silk Kanishk
If Gaia wants more money, and they've made it clear that's really all they want, then re-releasing the ring would be the way to go.
I'm not a business major myself, but you don't really have to be to see what's wrong with the implication you're making, and why such a horribly wrong implication doesn't mean Gaia's going to re-release SH.
The way you've put it basically screams "GAIA'S BEING GREEDY", and while it could be proven that they're being stingy, it can't actually be said they're being greedy, as such. They need to put the least amount of resources possible into the projects they think would get them back the best possible profits, because a lot of the profits they take in go to keeping everything functioning after paychecks are logged.
Say, for sake of example, that you're a farmer. You're trying to think of the most profitable use for your cows, and it comes to a choice between milking your cows to sell the milk or training your cows to perform tricks so you can travel the country as an act. By far the most entertaining and interesting option is training the cows and becoming a circus act, but training the cows to do tricks would take tremendous amounts of time, money, and effort that you aren't even sure your traveling act will be able to re-compensate.
At some point, if you decide to commence with the cow training, it might become clear the life of a cow-circus ringmaster isn't all it's cracked up to be. It certainly isn't the most cost-efficient option from the outset, but surely, you thought, it would reap you the most filthy lucre. Turns out you'll have to pay for advertising your bovine romp wherever you go. Scads of money will also go towards renting out space with which to host your traveling act, as well as the costs involved in keeping the cows fed, housed, and free of horrific diseases. Eventually, you might even have to sell a few of them to butchers, tanneries, and farmers who want them for their milk, shrinking the size of your lineup and thus your odds of making up the costs of the circus. To try to make up for it, you decide to waste even more money by temporarily buying back certain fan-favorite cows every so often.
Eventually, it might just dawn on you that the only reason why you're even keeping the way-too-expensive-but-widely-beloved cow circus running is because you're too proud of yourself and your remaining cows to stop throwing money at your financial problems. You're now keenly aware that you've long since been throwing good money after bad, and the full implications of that won't hit you until you're a washed up has-been nobody remembers, panhandling in some far-flung town for booze money while fighting off a slow death by starvation and tapeworm infections.
What does that have to do with Gaia, zOMG!, and Sweetheart? Well, clearly, Gaia is now a washed up tapeworm-infested has-been five times over as of Heralds of Chaos because of their bloody facebook games and the emphasis they put on them until abandoning them for new ones, and they've probably started to wise up considering the cost of their circus -- I mean, site. Which is why they probably will not re-release Sweetheart.