I did alignments professionally when I was young. Tire shops only use the alignment bay to sell parts, often un-needed parts. They even sent me to a class put on by MOOG on how to find worn parts to make sales. The clowns doing the alignments are under pressure to get you in and out. They simply dont have the luxury to spend 2 hours doing a proper alignment for $69.

Honestly, the dealer may offer the best service, but you'll pay for it. Or, DIY. Its not rocket science, and you can no doubt do a much better job than what you have presently. Seriously, that both cars drive the same is pretty telling of hack work. Provided the front end parts are reasonably tight, they should drive like new after a proper alignment. Which starts with centering and locking the steering gear with "the tool", by the way.