For most sewn gear I own, that would definitely come in handy. Obviously it would be hard for a company to tell you what part of their product breaks down, because they would see it as bad marketing - but it would sure be useful to know before you're committed to using a piece of equipment and it under-performs in the middle of a trip!

That's one reason why I still use my heavy external-frame kelty - it's tough as nails, and I've carried loads as unmanageable as 95lb in it (yeah, maybe 3-4mi a day for the record ). Even at that weight (for me), the kelty was still comfortable, even if it did leave me sweating and winded just lifting it up.