AstroKushI'm currently at work as I dont have full attention on this post- am just throwing in few examples of whats out there- he just have to look around. 150 is the standard lowest amount he's able to find for brand new from online retailers, just need to look around for better deals. Labor day (US holiday) is next week on 3rd, may find deeper discounts on that day.
I get it, I'm not trying to be a dick.
Corbetts/ASOgear had head attack 13s for like $120 last year. It seems like the popularity of that binding has grown and there aren't a lot of heavily discounted units laying around.
I think the complication is mostly the international shipping. The green set you linked above cost $25 to ship up north totalling ~$220CAD ~$170USD.