The one on my machine was broken, and this one came with the machine when I bought it.
I had thought of making decals and then installing it, but I fixed the one on my machine with a cliffy style repair that seems to be holding up and looks pretty good.
After that I thought about keeping it as a backup, since I'll own Time Machine for quite some time...
Now I feel bad holding on to this thing that someone without a functional ramp might be able to use.
How much do you think that it is worth? The guy I bought it from said it cost him 200 dollars, IIRC.