Caroline, I love this idea and started to implement it last year in my classroom. Something to keep in mind is that many student desks are already wipe-off surfaces. My students used dry erase markers to write directly on their desk tops almost every day. We then took pictures of their products for display or assessment purposes.
Yes! What a great way to use what we have and make it better. The elementary school where my children attend has started this conversion from a traditional computer lab to a STEAM (science, tech, engineering, art, math) room. There are still some desktops, but there are also other areas created for multiple uses and creative use.