In 2008, LEGO released 2 Architecture Brickstructures sets, all of these sets have been retired. For that year, the total price of all retail sets cost $60, today those sets are valued around $2,444, a growth of 3975%.
Most valuable 2008 LEGO Architecture Brickstructures set
19710 Sears Tower $1,333.33
Largest 2008 LEGO Architecture Brickstructures set
19720 John Hancock Center 69 pieces
2 sets

19710 Sears Tower

Theme / Subtheme Architecture / Brickstructures
Year 2008
Pieces 68
Availability Retired
19710 LEGO Architecture Brickstructures Sears Tower
Retail $29.99
Value $1,333.33
Growth  +4345.9%
Annual growth 13.2%

19720 John Hancock Center

Theme / Subtheme Architecture / Brickstructures
Year 2008
Pieces 69
Availability Retired
19720 LEGO Architecture Brickstructures John Hancock Center
Retail $29.99
Value $1,111.07
Growth  +3604.8%
Annual growth 13.7%