Some people might shy away from clipart because they don't think of it, or they think it's too much work. If you find the clipart in a clipart book that will be too much work and it won't look good because you'll have to use a photocopier to resize it and then the quality degrades.
You can have your feast of logos, mascots, identity and business cards, invitations, letterheads. In addition, there are no hassles of license terms. The electronic art available on the Internet is an extension of this concept. These images are digitized drawings on low resolution used for decorating Invitations and E-greetings.
Free graphics get you halfway to what you need, whether it's for an announcement, flier, or website. You love your friend, but you don't have to wait on him. With free clip art as an option for your design needs, you always have a stopgap measure. You really might need that professional-looking site or flier, but you can at least fill the space until your buddy pulls through. After all, if you are willing to take the hit by taking a less-expensive professional design route from your friend, free clipart is the next, easy step down.