New Ukulele - the importance of warranty registration

A lot of ukuleles being made these days are coming with lifetime limited warranties.  While the "limited" part won't protect your new uke from wear and tear from normal use, damage from abuse, modifications that you make to the instrument, unauthorized repairs, and a whole barrage of other things, it's still important to get your new ukulele officially registered with the company.

Sure, it's a hassle, but it could pay off in the long run.  Your limited warranty should cover any defects in your ukulele that might pop up unexpectedly down the road.  The company should have record via the serial number and model number of every uke made, which leads to the following question....why is it so important to fill out and send in the little card?