In 2006, LEGO released 3 Sports sets in the subtheme Football, all of these sets have been retired. For that year, the total price of all retail sets cost $80, today those sets are valued around $482, a growth of 502%.
Most valuable 2006 LEGO Sports set
3569 Grand Soccer Stadium $305.50
Theme / Subtheme Sports / Football
Year 2006
Pieces / Minifigs 26 / 2
Availability Retired
3568 LEGO Football Soccer Target Practice
Retail $9.99
Value $58.62
Growth  +486.8%
Annual growth 4.6%
Theme / Subtheme Sports / Football
Year 2006
Pieces / Minifigs 386 / 14
Availability Retired
3569 LEGO Football Grand Soccer Stadium
Retail $49.99
Value $305.50
Growth  +511.1%
Annual growth 10.6%
Theme / Subtheme Sports / Football
Year 2006
Pieces / Minifigs 199 / 4
Availability Retired
3570 LEGO Football Street Soccer
Retail $19.99
Value $117.38
Growth  +487.2%
Annual growth 6.9%