Sony KP-57WS500 57 in. TV

We just had the same problem with the screen going blue and cutting off. Evidently, the blue CRT part went bad....and the set is not even 5 years old! We spent almost $3k on this set, including a 3yr warranty that is now conveniently expired. Now we are looking at having to spend $500 to repair. We bought a Sony because we wanted quality and thought this tv would last at least 10 years. The TV repairman said that he has had to replace so many Blue CRTs on these TVs that Sony should have recalled them. And there is no guarantee it won't happen again. Not to mention it is recommended that these sets are cleaned every 2 years (for $200 a cleaning). We have so much invested in this tv that we really don't know what to do. We will not buy another Sony product either!