It's amazing there are already so many years available for download. Especially the larger zips must have been somewhat time-consuming to compile! It would be great if 2008 or pre-2006 packages become available in the near future. It is a really interesting development to see being interested in not only compiling large current packaged databases of various wikis, but also more historic content. In the past, the Internet Archive was the sole distributor of older (also historic) wiki packages. 

Eventually in the far future, there will have to be some sort of viable mechanism for cloning all the images stored on wikimedia, though as for now the Picture of the Year packages are very interesting for those more interested in the pretty images of wikipedia. The POTY images also make great wallpaper packs!