It is affordable.
It can even pay for itself!
I don't pretend to know all the laws, but I do know that in NJ (and I will guess other states) it is illegal to travel with a loaded magazine. That's right, even if the loaded magazine is in a locked box separate from the firearm in its own locked box, you are breaking the law. The magazine must be empty if it is transported.
So that means you have to waste valuable time at the range loading your magazines.
Say you pay $30/hr for range time. You could spend 20 minutes just loading your magazines!
You're paying $10 every time you go to the range just to load you magazines!
Save time and save money with this simple device.