I don't think I would sell the AR to buy an AK either. If you are thinking of adding to your collection, though, I would suggest the SLR-95.
The SLR-95 is a Bulgarian AK-47. It has a milled receiver and is the most accurate of the AKs right out of the box. The beauty of an AK right now is that you can get ammo for about $80/1000 rds., 30 rd magazines are around $15 and it will even accept a 75 round drum magazine.
It will feed 7.62X39 JHP all day long without missing a beat. It will function in heat, cold, dirt, snow, ice, sand, you name it.
The drawback of the rifle is that it is not nearly as accurate as an AR. That is true of all the AKs, though.
You can usually find these rifles for around $800 or so. I've seen them for under $600 and over $900, so shop around.
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RKBA!
"The people have the right to bear arms for their defense and security"
Ohio Constitution, Article I, Section 4
Concealed Carry is illegal in Ohio.
Ohioans for Concealed Carry Website