I think it's nice to have some different challenges for a change. These things tend to be so stogy and purist. Building something outside of your comfort zone might give you new insights and perspectives.
Building sabers with random parts, does clever things most sabers don't, uses unconventional materials, and on themes outside of star was is basically what I do. I think it's great to have something that isn't "build yet another in canon hilt"
Other concepts I'd like to see are things like "only found parts and plumbing parts" or "all electronics from scratch"