So I was looking for a graph drawing tool like yEd, except with some better export options and filtering capabilities. After not finding anything suitable in the freeware market, I start looking at payed software, figuring a couple hundred bucks might be worth it if it's good enough to save me some hassle. Found this yFiles thing that looked interesting. But no prices listed on the products page. I find the pricing page, go through a license wizzard, and get about the cheapest single seat license they have on offer, which is... above 10'000 dollars, without support (support is, like, another 4000 or so)? Either I completely misunderstood what I'm looking at, or these guys are certifiably insane ?