Worn bushing, bad ball joint, sloppy tie rods, worns or leaking steering rack, lower and upper control arms are likely toasted from age, uv, and heat.
Theres alot more to a front end than an alignment. You can put worn parts straight, but the tires will still wear funny.
I cringe when i see people replace front end components one a time, and one side at a time, usually waste a tire each time. You'll find this person at the tire store at least every 3-6months. Of course, paycheck depending.
It has been my experience that no matter how experienced your aligment shop, they cant fix worn, used up parts. No front end component last forever, and it can be dead straight, but with worn a arm bushings it will still wear.
So where does blaming the shop get ya.
Maybe if people spent more on the maintenance of these rigs than go fast parts, rims, and accessories they wouldnt be so easy to find at the pick n pulls.
Sorry for your luck, but i would buy it back and fix it, then sell in CO.