I've invested a lot of time in XaraXtreme. I've also invested money in buying it and using it to earn some dollars. I don't care much if there's an OpenSource alternative that will be updated (read: changed) often because I've made XaraXtreme my choice of drawing tools. CorelDraw, Illustrator and InkScape are all on my system which are used mostly as viewers and/or converters.
Free clipart is occassionaly useful, however often I need to produce something for a customer which is unique and is 100% relative to their business, so I can't use stock props that already exists.