Everyone likes new shiny things true, but the effort required to create new & shiny things consistently is extremely high, especially for a one man band. You probably know the effort required.

I get the idea that you like to see new concepts, but I don't get why you'd complain about people polishing old ideas. You suggest that it's keeping them from working on new ideas but just because something is new, doesn't mean it's good. Not every new thing someone puts out is gold. If they have a proven winner, then they should push & see how far they can take it.