As far as occasional falls, as long as you aren't dropping them off a balcony or something they shouldn't die from it, heh. The headband might come off (it's designed to separate) - but as long as it snaps back together and they don't develop the whine you should be AOK.
Regarding pads - my original pair started flaking within a few months of receiving them, but it didn't progress like I've seen on some ATs and Sonys. I ordered two pairs of replacements on the assumption that this would be an annual or bi-annual thing, however all four of the replacement pads feel more robust than what I was replacing (did not change the sound); so I've had the replacements on it since then, and two more sitting in their packaging on the shelf that probably won't go on for a long while at the rate things are going. I don't know if this means there is a difference, or if I just got a less than perfect pair of original pads, or what - I'd say order them up as-is, and know that the pads are super cheap to replace (you will NOT enjoy putting them on).