In 2005, LEGO released 2 Duplo Value Packs sets, all of these sets have been retired. For that year, the total price of all retail sets cost $120, today those sets are valued around $943, a growth of 686%.
Most owned 2005 Duplo Value Packs set
65766 Thomas Bridge & Tunnel Set
Theme / Subtheme Duplo / Value Packs
Year 2005
Pieces 87
Availability Retired
65766 LEGO Duplo Thomas Bridge & Tunnel Set
Retail $69.99
Value $783.03
Growth  +1018.8%
Annual growth 11.7%
Theme / Subtheme Duplo / Value Packs
Year 2005
Pieces 53
Availability Retired
65773 LEGO Duplo James and Percy Tunnel Set
Retail $49.99
Value $159.62
Growth  +219.3%
Annual growth 6.3%