In 2006, LEGO released 7 Batman sets, all of these sets have been retired. For that year, the total price of all retail sets cost $350, today those sets are valued around $10,280, a growth of 2838%.
Most valuable 2006 LEGO Batman set
7785 Arkham Asylum $3,294.27
Highest growth 2006 Batman set
7780 The Batboat Hunt for Killer Croc +5402.70%
Largest 2006 LEGO Batman set
7783 The Batcave The Penguin and Mr. Freeze's Invasion 1,071 pieces
Most owned 2006 Batman set
7781 The Batmobile Two-Face's Escape
7 sets

7779 The Batman Dragster Catwoman Pursuit

Theme Batman
Year 2006
Pieces / Minifigs 92 / 2
Availability Retired
7779 LEGO The Batman Dragster Catwoman Pursuit
Retail $9.99
Value $541.81
Growth  +5323.5%
Annual growth 11.8%

7780 The Batboat Hunt for Killer Croc

Theme Batman
Year 2006
Pieces / Minifigs 188 / 2
Availability Retired
7780 LEGO Batman The Batboat Hunt for Killer Croc
Retail $19.99
Value $1,099.99
Growth  +5402.7%
Annual growth 13.3%

7781 The Batmobile Two-Face's Escape

Theme Batman
Year 2006
Pieces / Minifigs 386 / 3
Availability Retired
7781 LEGO Batman The Batmobile Two-Face's Escape
Retail $29.99
Value $958.53
Growth  +3096.2%
Annual growth 12.4%

7782 The Batwing The Joker's Aerial Assault

Theme Batman
Year 2006
Pieces / Minifigs 523 / 3
Availability Retired
7782 LEGO Batman The Batwing The Joker's Aerial Assault
Retail $49.99
Value $1,176.75
Growth  +2254.0%
Annual growth 12.3%

7783 The Batcave The Penguin and Mr. Freeze's Invasion

Theme Batman
Year 2006
Pieces / Minifigs 1,071 / 7
Availability Retired
7783 LEGO Batman The Batcave The Penguin and Mr. Freeze's Invasion
Retail $89.99
Value $2,633.23
Growth  +2826.1%
Annual growth 11.8%

7784 The Batmobile Ultimate Collectors' Edition

Theme Batman
Year 2006
Pieces 1,045
Availability Retired
7784 LEGO Batman The Batmobile Ultimate Collectors' Edition
Retail $69.99
Value $575.60
Growth  +722.4%
Annual growth 6.4%

7785 Arkham Asylum

Theme Batman
Year 2006
Pieces / Minifigs 860 / 7
Availability Retired
7785 LEGO Batman Arkham Asylum
Retail $79.99
Value $3,294.27
Growth  +4018.4%
Annual growth 13.8%