A lack of pre-baked software wouldn't be an issue if the app Web Store was clear, easy to navigate, and chock full of excellent software. Unfortunately, it scores poorly in all three categories. Google's Web Store is much like the Android Marketplace when it first launched. The selection is poor, and it's immediately clear which apps are worthwhile.
My attempt to find an image editor was painful. Searching returned twelve results, none of which were clearly better than any of the others. If there was any order to how they were presented, I couldn't find it. Lacking any guidance, I simply tried several different apps, muddling through them until I could find one that was acceptable. Wasting time in the search of a Paint stand-in would have been annoying itself, but my blood pressure began to realize that many of the apps were tied to services that required registration.
I never found an app that satisfied me. After trying for a half-hour, I gave up and decided to edit images on my desktop instead.
My woes were only worsened by apparent compatibility issues between Chrome OS and Chrome browser. At one point I wanted to take a screenshot of a specific portion of my desktop, which isn't supported in Chrome OS. My attempts to use Chrome screenshot apps failed, however, as they would not work with the file manager properly.