I hate when that happens.
I had a computer die recently, and in the process of building the new one I went in search of my ProTools disks. Could not find them anywhere. Like Photoshop, it's a somewhat expensive program, so you don't want to replace it if you don't have to.
Long story short, there were no disks. It was a "download" delivery. All I had to do was log into my account and I could download it again, provided I had my program key and hardware dongle (which I did). Dodged that bullet.