MSRP on the SafetyPuck is $33.95. Both items, if purchased in quantity, have lower prices.
After testing these I'm going to be happy to put them both in my car. SafetyBright recommends placing the SafetyStick in your driver's door pocket or within reach of the driver's seat. That makes sense in case you need to escape your vehicle. The SafetyPuck, I think, is going inside my trunk - where I'd normally keep flares. Hopefully I won't ever need either one but if I do, I'll have them. And as we all know...
It's better to have it and not need it than to need it and not have it.