Advantages Of Aftermarket A-arms?

so i went to get an alignment after new wheels and tires yesterday, and the tech said that i needed new ball joints on both sides. im calling bull, since i just had new ones installed less than a year ago and i have been gone most of that time due to the Military, so it has maybe seen 2k miles since. but in case it does need new ball joints, i have been playing with the idea of just grabbing some after market A-arms with ball joints already installed and just bolting them up, along with the required coil-over's. any real advantage? i just see installing A-arms as less of a PITA than ball joints, cause i had a HELL of a time doing it last time, to the point that i actually had my buddy finish it up at his shop.

I drove it with FRPP C springs and no CC plates for maybe 1-2k miles, I just put on MM CC plates before the tires and wheels. And I have no clue as to why it would eat them up otherwise. They were factory replacement, not stress. And I'd be lookin at something like UPR honestly, with the money I have dropped on the car I just can't afford the MM parts with other things I have going on at the moment. But If I do need ball joints I don't want to dump money I to the stock arms again.

I'm
Not even sure if I can clear a Coil over kit yet, I need I go check. I am running factory 4-lug with the American Muscle 17x9 10th anniv wheels. Not sure if I have the room for it