I will let you go. Why? Because in the long run i will benefit more from freeing you.
Picking-His-Nose (Actual Argonian name) : What do you mean..?
You see, if i left you here, you would die from starvation. Letting you die - or killing you, as it too is an option i considered - would grant me no benefits other than a temporary mood improvement. I couldn't possibly smuggle you out of here, because there are Imperial Scum everywhere in Seyda Neen, and besides, i have nowhere to hold you afterwards, and i have no purpose for you just yet..
So by freeing you, i can buy you - or others of your kin, friends and family - later, when i will need a slave. And because i'm decreasing the rate at which you slaves die, i contribute to LOWERING the price i'll have to pay for you later.
Picking-His-Nose : That's..
Brilliant, i know. Now go, i have to clear this place.
Let's give marksmanship one more try... This bucket over there should be a good target.
Hmm, i've missed the bucket, and instead hit... What.. Sweet Dancing Azura! It was a smuggler! I TOTALLY meant to hit the smuggler!
I shall get closer, and reflect my greatness while towering above the vanquished foe. Ha! A dunmer too! And.. no way! It's one of the scumbags that knocked me out!
Sigh.. it's not the same without audience..
You! Over there! Come here and look at me mocking the dead!
Wha--stop that! Don't attack me, foolish woman!
Argh! You asked for it!
It appears to be the last one of them. With their souls embarking on the journey to the depths of hell, only one thing remains to be done : Looting!
Moon Sugar? So they smuggled drugs as well!
Personally i would just enjoy the sugar myself instead of trading it. There is more gold to be gained from pillaging.
..and what is this? Brandy!?
It's worth quite a lot. I will keep it for a rainy day..
And since it's pouring rain outside as we speak : chee--
What the.. They have SKOOMA? Perhaps i should've taken control over this place, instead of wiping them all out..
..Oh well, nothing can be done about it now, and it appears that i have explored the entire complex already. Now, all i need to do is somehow mark the entrance, so that i know i have already visited it.
Something.. subtle. Something that only i will be able to understand.. Yes, this will work!
PERFECT!