Looks like there's a healthy secondary market of passholders buying sabers in the park and parting them out on eBay.
Higher quality custom parts would be cool, but I wonder if the form factor would prevent that from really taking off. The Savi hilts are large and very heavy (mine is 2 pounds by itself). It was fun to build and cool to have, but it stands out displayed next to other sabers and weighs too much for a costume belt-hanger.
Be interesting to see where it goes