​Heavy cast dish wand holder. Useful or Silly?

I’m looking for feedback on a product idea.

The problem is holding these popular dish wands upright so the soap doesn’t leak out. Holders are available with suction cups or adhesive, but these don’t stay put long.

My idea is to make a cast metal holder. Heavy enough that it’s mass keeps it in place. I’ve been using this aluminum prototype for 6 months and find it very convenient, it doesn’t slide around at all. I could also make them from bronze to be more aesthetic.

This would obviously be a very specific crowd that is willing to pay $30-$40 for a dish wand holder. Do you think this is foolish?