I’m kind of surprized no night vision goggles or binocs on his list. They can be had for under $300. Something on my list to buy soon.
http://www.nightvisionetc.com/category.php?id_category=13
The really cheap NVGs are Gen 1 and are made in Russia or China and some of them emit unsafe levels of radiation. Be careful about what you buy. Also, they require batteries, so in any EOTWAWKI scenario, they will only be useful until battery supplies are exhausted.
If anyone is serious about buying NVGs, get Gen 3 or 4. Expensive, but well worth it.
/johnny