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 $7,570, a growth of 2063%.
Most valuable 2006 LEGO Batman set
7783 The Batcave The Penguin and Mr. Freeze's Invasion $2,499.81
Highest growth 2006 Batman set
7780 The Batboat Hunt for Killer Croc +3783.29%
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 $222.80
Growth  +2130.2%
Annual growth 9.1%

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 $776.27
Growth  +3783.3%
Annual growth 11.9%

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 $680.03
Growth  +2167.5%
Annual growth 11.4%

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 $982.47
Growth  +1865.3%
Annual growth 11.5%

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 $2,499.81
Growth  +2677.9%
Annual growth 11.4%

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 $520.00
Growth  +643.0%
Annual growth 8.5%

7785 Arkham Asylum

Theme Batman
Year 2006
Pieces / Minifigs 860 / 7
Availability Retired
7785 LEGO Batman Arkham Asylum
Retail $79.99
Value $1,889.07
Growth  +2261.6%
Annual growth 12.0%