I must not be explaining it clearly. What I mean is when you dual wield, but CHOOSE to fire ONLY a single pistol, you aren't adding the additional difficulty die. So then you are basically firing the same as if you just had one pistol. But if you NEED to you can fire both weapons (at the +1 difficulty) with the chance to do more damage. You have no versatility when single wielding, and no chance to risk more damage for less accuracy.So why would anyone choose a single pistol? Compared to dual wielding but only firing a single pistol (ie: more choice, more versatility). The only upside to a single pistol is having a hand free.
Well you have that same thing if you have Quick Draw and the second pistol holstered too. Then you can run around with one pistol, and whip out the second one as an incidental, basically costing you nothing mechanically. So basically having one pistol holstered and one drawn would then be what you refer to as "= the end game for pistol characters" too (with that talent, which I think appears quite a few places on talent trees oriented towards firing ranged weapons, at the very least). Which I guess you could say it is, but there are enough drawbacks I think: Encumbrance, increased difficulty and the inability to do anything but shooting with you hands... so yeah, it's as you say, but for some reason most players - at least that I've encountered - just get one pistol, sometimes due to money, but encumbrance comes into it too of course.
Edited by Jegergryte