I think Rob Singer once talked about a bank of dollar machines offering $250,000 for a dealt royal. I personally never saw one, but I don't travel to Vegas that often.

Dealt royal jackpots (650,000-1) are much more attainable than the sequential royal (30+ million-1).

I believe it's a good idea to advance the proliferation of dealt royal jackpots more widely, yes.

To some extent, multi-play machines (3-play, 5-play, 10-play, etc.) give inherent bonuses to dealt royals via the nature of the games themselves.