I know the tailoring is better for SS, but the 3rd party headsculpts are in many cases better imo.
So I think with SS, it really may come down to resale value for those who care. SS will go up in value and the 3rd pary may hover aroound retail price give or take.
But if it's about collecting and displaying, perhaps 3rd Party is the way to go? I see my Redman toys, the heads have not aged to well, but they are still compareable to Sideshow mostly.
I would like Present Toys to tackle Dirty Harry next, but who knows their reasoning behind releases.