Walmart's machines are better than anywhere else I've gone. They are new for having an automotive section so all of their machines are relatively new and super stupid easy to use. That's where my friend brought his Forgelines all the time when he couldn't make it out to MA. I'd rather bring my wheels there than to a regular tire store. There machines are super old and 10 times more difficult to stretch tires on than the machines at a Walmart.
Remember, they scratch a rim, you get to throw a shit fit and have them pay to fix the damages.
$25/tire + disposal is insane for something that takes less than 20 seconds to do per wheel.