And Sony, again, are hardly short on cash (they have a record label, make TVs, laptops, stereos etc etc).
Actually, Sony may be shorter on cash than you think... lol
Record Label: Not really doing so hot as CD sales are dropping and they don't get near as much cash off of their MP3 DL's as Microsoft and Apple earn. Problem is that they pushed so hard for so long for the whole Blue Ray/Music CD products to stay viable that they dropped the ball on locking down good MP3 profits.
PSN: They foot the entire bill out of their profits for PSN. Then take into account that across their many divisions, sales have been dropping very low in comparison to their Korean competitors. Which is why they had so much trouble countering the hacking issues last year and this year. Also, their arrogance led them to supply PSN with shoddy malware protection.
TV's: Sony is losing their ass in the TV market to their Korean competitors. There was a news story a while back about Sony getting a new CEO who was going to vastly restructure the entire company with a focus on their TV's (with a focus on integrating all of their systems under one online umbrella like Microsoft has already done...) and the PlayStation brand, because they had been in the red for quite a while and their debt was quickly approaching the billion dollar mark.
For anyone who thinks that Sony isn't on the edge... they're struggling about as bad as they can be right now. This new CEO is even heavily considering the idea of having PS owners pay for PSN in a manner comparable to Xbox LIVE just so that they can keep offering it. They simply don't have the cash to afford the entire bill for much longer.