If retainers had signs, yeah, people could get into marketing. They could be creative. Or have your retainers shout something or other. That's probably far beyond the capabilities of this game, but whatever.
If you had more control, you could bundle items. Buy a sword, get a free shield. Buy underwear, get a free coconut. Whatever.
As it stands, all you can do is name your retainer and decide what race it is. In actual retail, that's something you normally kinda don't do. And maybe shouldn't.
So really, all that matters is your price. And that's what you do at AHs. And, like AHs, you get a certain number of slots.
Am I missing something? Is there any way in which retainers make the game more immersive?
All it seems to offer is restrictions.
Does anyone like these restrictions?