The voodoo knife block has been around for a while, and is now into its third generation.
The first time it was the styling that was altered and the number of colours was increased, the second time around it was the looks that were improved. The result is a new knife block that has both the looks and the capabilities that it deserves. There are some of the older versions available and they are cheaper, so it really depends on how much value you place on quality?
The above link will take you through to both the versions (if there are any of the older ones still left) so you can make your own mind up.