First remember that you are buying insurance. With that out of the way i will say that i bought my extended warranty for FAR less than a fuel pump would cost.
I recall reading that some folks, don't blow this statement out of proportion, had problems with fuel pumps. I plan to keep the bike for 5+ years so i look at it as cheap insurance, just in case.
I say, if you can afford it and plan to keep the bike and put 10k plus a year on the thing, why not!
DL650K7 w/ madstad, Cee-Bailey, handguards, dl1000 seat, beaded seat cover, center stand, givi E36 bags, jc whitney top case, headlight protector, fender extender, pat walsh shelf, pat walsh tip-over bars w/ highway pegs, emgo mark II mirrors, tankbox w/ gps, radar and mp3 more to come.