Yeah, seems like there are enough free places. Guess it will sell out though, eventually. If you check the graph, there are not really a lot of free places.
The closest one to being sold out is Cologne with some 1.500 missing...... the rest of the conserts still have some (several) thousand (s) tickets.....
They will probably lower the price closer it comes to consert day and then it will eventually sell out and that's probably what people are waiting for.....
Not only Cohl knows the business, the fans also know how to get the best price..