Personally I think Samsung are making a rod for their back. If its out of warranty it shouldnt be repaired FOC. I dont think LG Tosh or many others do free repairs even though their PSUs are prone to cap failure.
Red rag / bull scenario!
They'd be making a bigger rod for their back if they expect customers to suck it up - buying a £1000 telly every 2 years or so. Or face being fleeced £150 just for someone to say 'yep, it's your PSU - it's full of dodgey caps. That will be another £200 for a new PSU please!'
Samsung are setting an example that others should follow. Plus of course, if the reason for failure is a well known, well documented case of shoddy components - why should the customer be made to pay?
Consumer law states that goods have to be fit for purpose. Forget the warranty. It's not unreasonable to expect a TV to last longer than the warranty period. If it turns out that the PSU has a whole bunch of swollen caps, it's the least the manufacturer should do.
I can imagine that struggling TV repairmen may find it hard to swallow that such repairs are now being done for free, but I can pretty much bet that the vast majority of people stumbling across this forum are doing so because their TV has just broken. Their main priority will be to get their TV working again in the least amount of time, for the least amount of money.
Samsung got my TV working again in less than 10 mins, for free, within 48hours of my call. This means my initial purchase/investment cost in the TV was not a complete waste after all, thanks to some pukka after sales care. People who like to do their homework will make a note of this.
The defective capacitors are effecting all manufacturers, TV's, motherboards etc - so once the caps are 'out there', the only thing respected brands can do is offer first class customer support. Or risk their reputations.