Yes, it's very difficult to judge stag via photos. I have gotten some good stuff from the seller linked from pictures, but it is risky when you're dealing with scales.
Tapers are much less difficult to judge from photos, and Tim (the guy that's on ebay now) takes quite good photos of these that should indicate any twist or curve. I actually bought quite a lot of stag from him a while back when he was getting rid of most of his inventory, but I was able to pick through it in person.
Prices are very high now as the exportation from India was banned, and supplies here in the US have dwindled heavily.
You being in Slovakia I can only assume there may be issues with importing, and of course shipping costs will push that even higher. I can only say though, that unless something changes, prices are only going to continue going up, and selection is only going to get smaller. Like fossil ivory, I buy as much as I can when I can, and I know there'll be a time where I'm reminiscing about the good ol days of being able to use stag and ivory.
