One previous Halloween, we had a Resident Evil theme at work. A few of us were selected to be soldiers. We all wanted to match and started looking for different items to complete our costume. Crown Surplus was an early stop in our several week trek.
To be clear, Crown Surplus is not a good Halloween stop unless you plan on keeping and using whatever you buy. This place is pretty expensive, but genuine stuff is not cheap. The person we dealt with was knowledgeable and the selection was extensive. If my interest in their product extended beyond this Halloween, I would have drained my wallet that day.
In the end, we didn't buy anything. Spending a few hundred dollars, which would have been easy, wasn't in line with our Halloween budget. But this place certainly struck me as the place to go for any avid collector. Stop by if you're into this kind of stuff, but don't forget your wallet.