Bought my LMT complete lower, now questions about a (lefty) upper

[SouthpawE46]

I'm more than excited for this "build", if you can call putting a complete upper and a complete lower a "build".

So I went ahead and ordered an LMT lower, with an Ambi safety selector.



Now, being a lefty, I'm considering a Stag Arms 3HL complete upper.

http://www.riflegear.com/p-136-stag-arms-model-3hl-complete-upper-left-handed.aspx

I know that this has been discussed, but if you are, or if you were a lefty, would you go for a lefty upper?

Pros:
They're ergonomically correct for me (a lefty)
I won't have hot brass coming at my face.
The FA is on the "correct" side

Cons:
Pretty rare
Low market to resell to
Not many companies make lefty uppers (only Stag I think)
In the case of an "emergency", I'm more than likely to find a right handed AR, so I might as well get used to it.

I don't mind getting used to a righty upper, as a lefty, I got used to many right handed activities because they're more prevalent (computer mouse, driving stick, etc)

So what would you do?

[corcoraj2002]

I'm a lefty and bought the stag arms 4HL.

Not planning on selling it so resale value is not a consideration. I just got the lh model to have it as my weapon, my gf doesn't like shooting lh rifles. My bolt action is rh

[hyperion.excal]

Im thinking of getting a left handed upper also.

I shoot right handed but im left eye dominant... i hate when the gas and powder blows next to my face when shooting AR

But i kinda like the smell of gunpowder

[Ding126]

You know have a choice of Stag or Rock River for lefty uppers...I suggest the Stag...since RRA has taken over 2 years and still haven't released their 40cal AR's

[TMcGuff]

Ambidextrous Safety and Magpul Bad Lever is all youll need

[SouthpawE46]

Pardon my noobness, but what does a Bad Lever do?

The guy at the gun shop was talking about one as well.

[WDE91]

One of calguns most infamous

http://www.youtube.com/watch?v=h2dNTRuTlSc

http://www.joeboboutfitters.com/B_A_D_Lever_Battery_Assist_Device_AR15_M16_p/mag-980.htm