In 1999, LEGO released 15 Castle Ninja sets, all of these sets have been retired. For that year, the total price of all retail sets cost $116, today those sets are valued around $1,952, a growth of 1585%.
Most valuable 1999 LEGO Castle Ninja set
3053 Emperor's Stronghold $579.99
Highest growth 1999 Castle Ninja set
1269 White Ninja +9685.95%
Most owned 1999 Castle Ninja set
3050 Shanghai Surprise
15 sets

1099 Ninja Blaster

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 24 / 1
Availability Retired
1099 LEGO Castle Ninja Blaster
Retail $1.99
Value $38.49
Growth  +1834.2%
Annual growth 8.9%

1184 Cart

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 24 / 1
Availability Retired
1184 LEGO Castle Ninja Cart
Retail $1.99
Value $51.83
Growth  +2504.5%
Annual growth 10.5%

1185 Raft

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 25 / 1
Availability Retired
1185 LEGO Castle Ninja Raft
Retail $1.99
Value $31.66
Growth  +1491.0%
Annual growth 6.7%

1186 Cart

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 25 / 1
Availability Retired
1186 LEGO Castle Ninja Cart
Retail $1.99
Value $54.39
Growth  +2633.2%
Annual growth 10.4%

1187 Glider

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 23 / 1
Availability Retired
1187 LEGO Castle Ninja Glider
Retail $1.99
Value $30.59
Growth  +1437.2%
Annual growth 9.1%

1269 White Ninja

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 23 / 1
Availability Retired
1269 LEGO Castle White Ninja
Retail $2.99
Value $292.60
Growth  +9686.0%
Annual growth 14.4%

3050 Shanghai Surprise

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 104 / 3
Availability Retired
3050 LEGO Castle Ninja Shanghai Surprise
Retail $11.99
Value $182.15
Growth  +1419.2%
Annual growth 9.8%

3051 Blaze Attack

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 145 / 2
Availability Retired
3051 LEGO Castle Ninja Blaze Attack
Retail $14.99
Value $88.00
Growth  +487.1%
Annual growth 6.5%

3052 Ninja Fire Fortress

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 169 / 3
Availability Retired
3052 LEGO Castle Ninja Fire Fortress
Retail $29.99
Value $204.93
Growth  +583.3%
Annual growth 7.5%

3053 Emperor's Stronghold

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 331 / 4
Availability Retired
3053 LEGO Castle Ninja Emperor's Stronghold
Retail $39.99
Value $579.99
Growth  +1350.3%
Annual growth 8.3%

3074 Red Ninja's Dragon Glider

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 20 / 1
Availability Retired
3074 LEGO Castle Red Ninja's Dragon Glider
promotional
Value $71.97
Annual growth 5.0%

3075 Ninja Master's Boat

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 21 / 1
Availability Retired
3075 LEGO Castle Ninja Master's Boat
promotional
Value $36.40
Annual growth 5.8%

3076 White Ninja's Tank

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 23 / 1
Availability Retired
3076 LEGO Castle White Ninja's Tank
promotional
Value $110.07
Annual growth 9.6%

3077 Ninja Shogun's Mini Base

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 22 / 1
Availability Retired
3077 LEGO Castle Ninja Shogun's Mini Base
promotional
Value $97.11
Annual growth 10.3%

4805 Ninja Knights

Theme / Subtheme Castle / Ninja
Year 1999
Pieces / Minifigs 31 / 5
Availability Retired
4805 LEGO Castle Ninja Knights
Retail $5.99
Value $82.06
Growth  +1269.9%
Annual growth 6.7%