By using KoorTickets instead of Ticketkantoor.nl a lot of money has been saved already.
...organiser 1 saved between €387,43 and €559,43 (462 transactions: 771 admissions, 215 other products)
...organiser 2 saved €47,20 (48 transactions: 89 admissions)
...organiser 3 saved between €66,70 and €89,10 (97 transactions: 144 admissions, 28 other products)
...organiser 4 saved €187,91 (265 transactions: 423 admissions)
...organiser 5 saved between €140,00 and €209,60 (230 transactions: 310 admissions, 87 other products)
...organiser 6 saved between €20,00 and €21,60 (24 transactions: 40 admissions, 2 other products)
...organiser 7 saved between €121,42 and €623,82 (602 transactions: 473 admissions, 628 other products)
...organiser 8 saved €360,80 (101 transactions: 523 admissions)
...organiser 9 saved €63,30 (76 transactions: 126 admissions)
...organiser 10 saved €177,40 (155 transactions: 338 admissions)
...organiser 11 saved between €363,53 and €469,13 (480 transactions: 762 admissions, 132 other products)
...organiser 12 saved €57,80 (109 transactions: 154 admissions)
...organiser 13 saved €13,00 (22 transactions: 30 admissions)
...organiser 14 saved €40,51 (70 transactions: 95 admissions)
...organiser 15 saved €93,10 (121 transactions: 192 admissions)
...organiser 16 saved €33,30 (47 transactions: 71 admissions)
...organiser 17 saved €26,50 (27 transactions: 50 admissions)
...organiser 18 saved €93,30 (118 transactions: 181 admissions)
...organiser 19 saved €15,70 (23 transactions: 34 admissions)
...organiser 20 saved €9,90 (6 transactions: 13 admissions)
...organiser 21 saved €10,60 (14 transactions: 22 admissions)
...organiser 22 saved €52,80 (64 transactions: 106 admissions)
...organiser 23 saved €56,90 (83 transactions: 123 admissions)
...organiser 24 saved €42,50 (43 transactions: 80 admissions)
...organiser 25 saved €45,90 (33 transactions: 78 admissions)
...organiser 26 saved €117,00 (118 transactions: 220 admissions)
...organiser 27 saved €77,60 (72 transactions: 151 admissions)
...organiser 28 saved €34,30 (42 transactions: 66 admissions)
...organiser 29 saved €122,30 (157 transactions: 251 admissions)
...organiser 30 saved €5,20 (4 transactions: 9 admissions)
...organiser 31 saved €27,20 (40 transactions: 59 admissions)
...organiser 32 saved €42,60 (38 transactions: 77 admissions)
...organiser 33 saved €23,00 (26 transactions: 45 admissions)
...organiser 34 saved €73,10 (108 transactions: 157 admissions)
...organiser 35 saved €2,40 (5 transactions: 7 admissions)
...organiser 36 saved between €42,00 and €59,60 (38 transactions: 75 admissions, 22 other products)
...organiser 37 saved €4,00 (5 transactions: 5 admissions)
...organiser 38 saved €93,00 (85 transactions: 144 admissions)
...organiser 39 saved €11,81 (16 transactions: 26 admissions)
...organiser 40 saved €22,80 (20 transactions: 41 admissions)
...organiser 41 saved between €7,70 and €17,30 (7 transactions: 14 admissions, 12 other products)
...organiser 42 saved between €36,00 and €41,60 (41 transactions: 70 admissions, 7 other products)
...organiser 43 saved €21,30 (23 transactions: 41 admissions)
...organiser 44 saved €17,80 (21 transactions: 38 admissions)
...organiser 45 saved €43,80 (58 transactions: 97 admissions)
...organiser 46 saved €29,80 (36 transactions: 65 admissions)
...organiser 47 saved €20,40 (21 transactions: 38 admissions)
...organiser 48 saved €13,80 (16 transactions: 26 admissions)
...organiser 49 saved between €6,20 and €9,40 (11 transactions: 16 admissions, 4 other products)
...organiser 50 saved €36,90 (35 transactions: 68 admissions)
...organiser 51 saved €1,10 (1 transaction: 2 admissions)
...organiser 52 saved €15,80 (27 transactions: 40 admissions)
...organiser 53 saved €27,90 (21 transactions: 48 admissions)
...organiser 54 saved €3,30 (3 transactions: 6 admissions)
...organiser 55 saved €9,90 (9 transactions: 18 admissions)
...organiser 56 saved €9,10 (9 transactions: 17 admissions)
...organiser 57 saved €98,00 (94 transactions: 180 admissions)
...organiser 58 saved €4,40 (5 transactions: 8 admissions)
...organiser 59 saved €21,70 (19 transactions: 39 admissions)
...organiser 60 saved €3,00 (2 transactions: 5 admissions)
...organiser 61 saved €24,00 (25 transactions: 45 admissions)
...organiser 62 saved €1,10 (1 transaction: 2 admissions)
...organiser 63 saved €3,60 (4 transactions: 7 admissions)
...organiser 64 saved €1,10 (1 transaction: 2 admissions)
...organiser 65 saved €1,40 (3 transactions: 4 admissions)
...organiser 66 saved €5,40 (2 transactions: 8 admissions)
...organiser 67 saved €0,20 (1 transaction: 1 admission)