In 2002, LEGO released 2 Castle sets across 2 subthemes, all of these sets have been retired. Subthemes for that year included Black Falcons and My Own Creation. For that year, the total price of all retail sets cost $80, today those sets are valued around $1,017, a growth of 1171%.
Most valuable 2002 LEGO Castle set
10039 Black Falcon's Fortress $621.89
Largest 2002 LEGO Castle set
3739 Blacksmith Shop 619 pieces
2 sets

3739 Blacksmith Shop

Theme / Subtheme Castle / My Own Creation
Year 2002
Pieces / Minifigs 619 / 2
Availability Retired
3739 LEGO Castle My Own Creation Blacksmith Shop
Retail $39.99
Value $394.79
Growth  +887.2%
Annual growth 6.0%

10039 Black Falcon's Fortress

Theme / Subtheme Castle / Black Falcons
Year 2002
Pieces / Minifigs 426 / 6
Availability Retired
10039 LEGO Castle Black Falcon's Fortress
Retail $39.99
Value $621.89
Growth  +1455.1%
Annual growth 7.4%