I have hunted most (but not all) of the Chamois sub-species as part of the GSCO Capra World slam. Chamois hunts in Europe are awesome.
Slovenia for the Alpine was by far my favorite destination. The small villages and hunting clubs (hunting families as they seem to be known in Slovenia) made for an interesting experience. We just don't have that same hunting club culture in the U.S. They target older animals, beautiful country and what I thought to be good price points. The terrain, village culture, etc. look to be about the same in Slovenia and Austria, but I found Slovenia to be less expensive all the way around. Austria is great, but I preferred Slovenia.
I hunted the Balken chamois in Macedonia. Lower altitude and not as steep, but very good prices. And there are a lot of chamois in Macedonia. A lot.
Spain also has a great hunting culture and you can find the Pyrenees and Cantabrian chamois. Smaller in horn length than the Alpine, but beautiful landscapes and a very good hunting culture. The smaller villages where you hunt are really special places, and since you are likely to fly into Barcelona, Madrid of Malaga, the tourist add-ons is very easy. If you like Spanish red wines, its a definite bonus. Prices right around $3,000 make it reasonable. I found hunting the Pyrenees in Spain to be a little less expensive than on the French side, but otherwise the same. I shot a Pyrenees on the ridge line just below the border between Spain/France. We would go to France for lunch, and hunt in Spain in the evenings.
Romania was very, very good hunting. Probably the best I found in Europe. You can find fixed price, and trophy fee hunting. Marius from
@HUNTROMANIA does a great job, has very good hunting areas in Romania, and a lot of AH members have hunted with him. The Carpathian chamois are also the largest of the sub-species so if horn length in an issue, Romania tops the list. Frankly, it tops my list anyway. The hunters and guides are Romania are also very serious about there heritage and love of hunting, so its a great all around experience. And there is wine.
New Zealand is all-around excellent hunting. They hunt the NZ Alpine chamois, it's a European Alpine transplant. SCI does recognize it is a separate sub-species, if that matters. They grow faster in NZ so a 3-4 year old in NZ (which as far as I can tell is a common age range in NZ) is about the same size as a 9-12 year old in Europe. If you are in NZ in the mountains, consider adding a Himalayan Tahr. Often found in similar places. NZ hunts seem to often combine 2 or more species, so take that into account.
I have not hunted the Vercors or Chartreuse in France, but if you are looking for something different/unique, its worth considering. Price point goes up considerably. I was just in Slovakia a few weeks ago, and I am looking at going back for the Tatra Chamois and other some hunting. Looks like really good hunting.
So the most common (Alpine, Balken, Pyrenees and Cantabrian) and the Carpathian in Romania, seem to fall around the same price point. The more exotic ones see a pretty good price jump. I would rank Slovenia at the top (because I really like the Country, its people, landscape and the trout fishing is awesome), and I would rank Romania right alongside it for the quality of the hunting and its people.
God luck.