Pre-booking a good idea and cheaper

"I have always tried to pre-book when I have gone away somewhere. The museum skip the line is a good idea but the as it says in the small print (note to self) it does not include the Pergamon museum which is one of the main ones to see. Therefore ... I booked separate skip the line and entrance tickets for this. The skip the line was very good value for money as we got to visit Altes, Altes national gallery and the Neues museums. The pass only lasts for a day so we could not see the Bodes museum as we ran out of time. It is well worth looking into getting pre-booking but read the small print to make sure that ticket meets your requirements."