The devil is in the details. I suggest you read every word of the actual warranty. For instance, what kinds of failure trigger the warranty? Is is absolutely no questions asked or will you have the hassle of proving that the failure was not caused by something you did or didn't do? Is there ever a situation where it will be pro-rated rather than a completely free replacement? And so on...and so on...
Pardon my cynicism but in my experience, the actual warranty is never as comprehensive as the advertised catch phrases suggest.