In 2008, LEGO released 3 Duplo Castle sets, all of these sets have been retired. For that year, the total price of all retail sets cost $122, today those sets are valued around $681, a growth of 558%.
Most valuable 2008 LEGO Duplo Castle set
4864 Castle $560.00
Theme / Subtheme Duplo / Castle
Year 2008
Pieces / Duplo figures 15 / 2
Availability Retired
4862 LEGO Duplo Castle Ambush
Retail $16.99
Value $29.79
Growth  75.3%
Annual growth 3.8%
Theme / Subtheme Duplo / Castle
Year 2008
Pieces / Duplo figures 41 / 2
Availability Retired
4863 LEGO Duplo Castle Sentry & Catapult
Retail $24.99
Value $90.74
Growth  263.1%
Annual growth 8.6%
Theme / Subtheme Duplo / Castle
Year 2008
Pieces / Duplo figures 115 / 3
Availability Retired
4864 LEGO Duplo Castle
Retail $79.99
Value $560.00
Growth  600.1%
Annual growth 9.7%