School me on NVGs

Bangout

Amateur
I have listened to every podcast so far and after some incidents we have had where I work I think this is something we need. I talked to one of the Captains about it and the possible use of the 10-33 program. He told me that could be an option but to see what it would cost to get NVG's if we just bought them. I never thought they would even consider getting this for us, so I don't really know anything about them. So here are my questions:
Is there something I need to stay away from?
What is a realistic cost per set, pair whatever they are referred to as?
What else besides the actual NVG's would we need for operational use?
I'm near salt water if that matters.
Basically anything I need to know.

I hate to be the guy that doesn't search and read everything before asking questions, but I just have too much on my plate for the next few days.
 
Here is a pretty useful vid that the mods just did about the usefulness of NVGs in law enforcement used if you have not already listened to it.

 
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