Obsidian's financial troubles came down to the fact they lived from contract to contract. They didn't own anything they created and didn't make money from sales. They depended entirely on publishers, and after a while, none of them were interested anymore. RPGs are inherently more expensive than most games, and Obsidian had become too risky of a gamble. If you pay Obsidian to make a game for you, you never know what you'll get. You hope you'll get a FNV, but it could be a NWN2, a DS3, or a Stormlands. PoE restored some of their reputation, which made Paradox gamble on them with Tyranny, but look at how that went. In short, the most reliable thing about Obsidian is the fact they're unreliable.