I'm in the process of scanning some student solutions to post to the class website, and it just occurred to me: When I was anywhere between about 8 and 15 I thought one of the coolest things a person could possibly own would be a photocopier. I really wanted one. Now I own one. (OK, it's a combination scanner/laser printer that makes copies as a side effect.) I also have access to a really nice copier in the department for whatever I need. They are useful (I'm not sure how many days actually pass without using at least one of them for something during a semester), but I just realized it's not nearly as cool as I thought it would be.
Of course, the other thing that I thought would be the coolest thing ever would be a video camera, and that would be totally achievable too. Every once in a while I think about getting one. I still think a video camera would be cool, but now I feel like it's a kind of cool which would require me to be, you know, creative to get anything out of, and I'm not sure I have enough of that to spare anymore.