Keep in mind....
Wally World goes to companies ask them to build them a product, whether it be a vacuum, appliance, lawn/garden, etc., for CHEAP. The companies are eager for a huge order like they will get from them, and build something CHEAP for Wal-Mart to put on their shelves. I've already heard from a vac shop owner, that the full size Rug Doctors advertised on TV with blue trim, is not built like the rentable red trimmed models. They cut corners on build quality on those and have already had issues. I don't shop there often, but when I do, I always have to walk down the vacuum aisle, and to be honest, it turns my stomach. They now have a Panasonic bagless that I've only seen at Wal-Mart, and doesn't resemble a higher grade Panasonic sold in vac shops, but more like a TTI inspired China import. Then someone might come along, say having shopped at a vac shop and saw the more expensive Panasonics, and think they would be getting a better deal, but months/years down the road would be disappointed. Just my observation and my honest opinion.