I used clipart a LOT for newsetters and other documents. I don't always want a photo - clipart is often better at getting an idea across quickly, and I didn't need to worry about copyright because I assumed it was OK to use without permission as it was a part of the MS package. The BING option is terrible - very juvenile and hardly extensive with fewer than 50 options. And by-the-way, most of the online sites for "accessing clipart in MS Word 2010" still say to go to insert then click on clipart. Really - we hardly need such basic instructions when they aren't even correct anymore!
Why is it that every time Microsoft make another edition of their software it makes it harder and harder to use. Seriously frustrated. Clipart was so darn useful. I was always ungrouping it to pull apart and use just some little images or to recolour to match my document / presentation. now I have to go and try and completely redraw things. This is a complete waste of time. Microsoft, you continue to be morons. Just once, I'd like to see an upgrade that actually added value and didn't make it harder for people to use. User UNfriendly. Seriously considering heading back to an earlier version of PowerPoint just so I can get that feature back.
This is TERRIBLE! Besides being able to edit vector images like Will mentioned (which is important for those of us who don't have graphic artists available to create custom images or the budget or time to buy that service ad hoc), you could also search for style "families" (different graphics that were all in the same style). There was a huge range of files and styles in the collection and it was much faster to find what you need than to do a Bing search. Plus, you knew that everything there was free and free to use, without having to worry about CC license issues.