You've got a long way to go to complete that iMac collection. Getting all the speeds and colors of the G3's will keep you going for a long time. When your collection looks like this
http://www.flickr.com/photos/soyburger/sets/72157594228629049/
or this
http://blogsimages.skynet.be/images/002/549/142_72d686126bf797deed8b7dfbcd402538.jpg
then you'll know what it means to be a real collector.
;D