In 2011, LEGO released 4 Castle Kingdoms sets, all of these sets have been retired. For that year, the total price of all retail sets cost $140, today those sets are valued around $961, a growth of 586%.
Most valuable 2011 LEGO Castle Kingdoms set
7189 Mill Village Raid $399.07
Highest growth 2011 Castle Kingdoms set
7187 Escape from the Dragon's Prison +1644.27%
Most owned 2011 Castle Kingdoms set
6918 Blacksmith Attack
4 sets

6918 Blacksmith Attack

Theme / Subtheme Castle / Kingdoms
Year 2011
Pieces / Minifigs 104 / 2
Availability Retired
6918 LEGO Kingdoms Blacksmith Attack
Retail $9.99
Value $73.97
Growth  +640.4%
Annual growth 14.7%

7187 Escape from the Dragon's Prison

Theme / Subtheme Castle / Kingdoms
Year 2011
Pieces / Minifigs 185 / 4
Availability Retired
7187 LEGO Kingdoms Escape from the Dragon's Prison
Retail $19.99
Value $348.68
Growth  +1644.3%
Annual growth 13.4%

7188 King's Carriage Ambush

Theme / Subtheme Castle / Kingdoms
Year 2011
Pieces / Minifigs 286 / 4
Availability Retired
7188 LEGO Kingdoms King's Carriage Ambush
Retail $39.99
Value $139.02
Growth  +247.6%
Annual growth 13.6%

7189 Mill Village Raid

Theme / Subtheme Castle / Kingdoms
Year 2011
Pieces / Minifigs 663 / 6
Availability Retired
7189 LEGO Kingdoms Mill Village Raid
Retail $69.99
Value $399.07
Growth  +470.2%
Annual growth 7.1%