LOLactually, in the era of the $599 AR ( Palmetto State Armory 16" M4A1 Carbine ), I really don't think there is any reason to own an SKS or a mini. Now that I own all three, I can tell you I will be getting rid of both the SKS and Mini to buy more ARs. No reason to own anything else. The AR is just an all around better gun.
After experiencing what a 15 year old military issue M16 is like in basic training, I can tell you that my reasons for owning an SKS are that it is nearly just as accurate and far more reliable despite being 52 years old.
Not to mention, your AR is not even military issue, it is a military issue knock off. Does it hold some advantages over an SKS? Yes, yes it does... But your statements "I really don't think there is any reason to own an SKS or a mini" and "no reason to own anything else" and "the AR is just an all around better gun" are completely myopic and ignore the advantages of other rifles.
I really don't understand why that mentality of "mine is the best, everything else is inferior" exists so strongly among AR guys. AK guys, mini guys, SKS guys, FAL guys, M1 guys, bolt action guys, lever action guys, and every other following of firearms owners tend to be honest about their chosen platform's shortcomings... But my AR buddies can be sitting next to me, shooting the same sized groups as my SKS, clearing their 5th jam of the day, and they still will pretend like the AR has zero shortcomings.