I used to order my wheels from ENCO (1-800-use-enco or enco.com) by the box. Don't ever recall a logo on them and most likely did not have one. They did wear down a bit faster than Chargers or Sait, but were 1/4 the cost and was an excellent bang for the buck!
I had no problem supporting my local (Gasses Plus in Wyoming, dealt with them 20+ years) welding supply house, but I had a family to feed and a business to run. The little things like 100 wheels, 100 clear cover plates, etc and any other misc. consumables adds up. Plus when the cheap skate next to you runs out, you can sell them to him at a proffit!, a six pack, whatever.