Not to mention, you can only transfer gold (and use the marketplace) on your main character to an alternate. If someone wants to transfer 100 gold at a time by creating a new main char, sell items, transfer gold to an alt, and then delete the main (and re-do the whole process), I have no problem with that. It's still an alt that is getting the gold, not the main.
I think that they'd be better off just playing a round at x1 multiplier.