system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Sony's and Nintendo's Financial Problems

Someone explain how these companies are losing so much, they have successful products, PS3 caught up to Xbox and sold reasonably well, and Wii sold like a bazillion units. the PS4 seems to be doing great and the Wii U seems to be on its way to recovery.
What should these companies do different?
And is this relevant to the strength of the Japanese Yen? It seems many big Japanese companies are struggling. 
PS: first post, be nice :)
gpt
Nintendo isn't in that bad of financial shape-they've run healthy profits most years *except* for the financial quarters after the Wii U launch, and it's turning around. They're also reputed to have a  *very* healthy nest egg, often suspected to be enough to completely cut bait on the Wii U and coast to their next hardware release if it became necessary.

Sony's gaming division is in the black, but the rest of the parent company is a sea of red ink, and the gaming division isn't anywhere close to profitable enough to balance the books.