In 2012, LEGO released 3 HERO Factory Value Packs sets, all of these sets have been retired. For that year, the total price of all retail sets cost $53, today those sets are valued around $495, a growth of 835%.
Most owned 2012 HERO Factory Value Packs set
66445 HF Co-Pack
3 sets

66437 Furno Jawblade Mission Pack

Theme / Subtheme HERO Factory / Value Packs
Year 2012
Pieces 101
Availability Retired
66437 LEGO HERO Factory Furno Jawblade Mission Pack
Retail $12.99
Value $174.76
Growth  +1245.3%
Annual growth 18.9%

66445 HF Co-Pack

Theme / Subtheme HERO Factory / Value Packs
Year 2012
Pieces 78
Availability Retired
66445 LEGO HERO Factory HF Co-Pack
Retail $19.99
Value $203.35
Growth  +917.3%
Annual growth 16.2%

66452 Stringer Voltix Mission Pack

Theme / Subtheme HERO Factory / Value Packs
Year 2012
Pieces 109
Availability Retired
66452 LEGO HERO Factory Stringer Voltix Mission Pack
Retail $19.99
Value $117.17
Growth  +486.1%
Annual growth 11.3%