Please sell access to Villain Patron Pools
It's not entirely a question of time and effort. If you give a damn about role playing at all (and I'm aware most don't) you wouldn't want to make your do-gooder turn evil for a bit just to have access to a defense toggle. I think hero's should have arcs available at 35 that have you go up against one of the patrons and gain access to 'their' powers by defeating them.
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@Inquisitor
Personally, I'd rather have equivalent Hero Patron Pools. No switching needed.
... and make sure both are at a level of effectiveness that makes the extra steps of running the arcs worth it. (This means no 8 second snipes.)