It might be a knock-off. You can try to search for info on it
here. A large number of faux absinthes are made in eastern Europe,
particularly the Czech Republic. The difference is the fake stuff is made merely by steeping the botanicals in some kind of neutral grain spirits, and adding some artificial coloring. Real absinthe is distilled from a mash containing the botanicals. Most authentic absinthes are produced in France, Switzerland, Spain and the US.
Spending $30 isn't such a bad deal, if you end up liking it. Crack it open and give it a taste. Pour a shot of it in a wine glass and slowly pour in a few ounces of ice-cold water. (It'll taste better diluted)