There are 2 cases that are very similar and at the same $59 origional price so it might depend on which store got what stock as far as availability. The faceplates are similar in design. The one I got has 4 5 1/4 slots, the horozontal PS, and fan grill on the back near the cpu. The other has 3 5 1/4 slots and a vertical PS that may get in the way of some heatsinks. Cheap? Sure, but fine for a P3 or a mid sized AMD. There's no way to really say that this PS is more prone to failure than any other PS since they rotate suppliers.
The $19 PS is fairly heavy which is a good thing. I'll open mine up to look for any wire shunts where coils should be and report back. That's the first sign of a cheap one.