I'm not going to say that Wally World bikes are high quality but they are what they are and that is decent and inexpensive means of transportation. Their high failure rate can be attributed more to improper assembly and non-existent setup/adjustments at the store compounded by user error... many people keep their tires under-inflated because they think the tires will otherwise blow out... the chain only gets lubed in the rain when it's splashed by road-grime... the owner is so clueless that he/she realizes something is wrong with the bike only at the point of catastrophic failure... anything that breaks or loosens up gets 'fixed' with tape, string or JBWeld.

A co-worker bought a Schwinn hybrid at Wally World several years back, got it home and set it up properly. He's been commuting on it year round since and it's been reliable... because he's not an idiot and knows basic maintenance rituals.