Those things remind me of when I'm at a home hardware store.

They'll have a sale on say multi bit screwdrivers on the end cap. It will look like a fancy screwdriver that is on sale with lots of features and bits.

Inevitably if I by these ... they suck and are actually expensive for the quality and often have "features" that get in the way (some sort of fancy grip, more bits).

If I go down the isle I'll find for far less a simple multi bit screwdriver that is both cheaper, and higher quality.

Accordingly I never trust these signs / actually avoid them as the same rule apply to cooking tools and so many other things.