In 2010, LEGO released 2 City Farm sets, all of these sets have been retired. For that year, the total price of all retail sets cost $39, today those sets are valued around $147, a growth of 277%.
Most valuable 2010 LEGO City Farm set
7684 Pig Farm & Tractor $136.60
Most owned 2010 City Farm set
7566 Farmer
2 sets

7566 Farmer

Theme / Subtheme City / Farm
Year 2010
Pieces / Minifigs 16 / 1
Availability Retired
7566 LEGO City Farmer
Retail $3.99
Value $10.44
Growth  +161.7%
Annual growth 6.9%

7684 Pig Farm & Tractor

Theme / Subtheme City / Farm
Year 2010
Pieces / Minifigs 256 / 2
Availability Retired
7684 LEGO City Pig Farm & Tractor
Retail $34.99
Value $136.60
Growth  +290.4%
Annual growth 6.5%