In 2010, LEGO released 9 Seasonal sets across 5 subthemes, all of these sets have been retired. Subthemes for that year included Christmas, Easter, Halloween, Thanksgiving, and Valentines Day. For that year, the total price of all retail sets cost $41, today those sets are valued around $127, a growth of 309%.
Most valuable 2010 LEGO Seasonal set
40004 Heart $38.07
Largest 2010 LEGO Seasonal set
40009 Holiday Building Set 85 pieces
Theme / Subtheme Seasonal / Valentine's Day
Year 2010
Pieces 26
Availability Retired
40004 LEGO Valentine's Day Heart
Retail $4.99
Value $38.07
Growth  662.9%
Annual growth 9.3%
Theme / Subtheme Seasonal / Easter
Year 2010
Pieces 81
Availability Retired
40005 LEGO Easter Bunny
Retail $9.99
Value $12.28
Growth  22.9%
Annual growth 2.3%
Theme / Subtheme Seasonal / Christmas
Year 2010
Pieces 64
Availability Retired
40008 LEGO Christmas Snowman Building Set
Retail $4.99
Value $9.02
Growth  80.8%
Annual growth 4.5%
Theme / Subtheme Seasonal / Christmas
Year 2010
Pieces 85
Availability Retired
40009 LEGO Christmas Holiday Building Set
Retail $4.99
Value $9.87
Growth  97.8%
Annual growth 5.2%
Theme / Subtheme Seasonal / Christmas
Year 2010
Pieces 71
Availability Retired
40010 LEGO Father Christmas with Sledge Building Set
Retail $4.99
Value $12.34
Growth  147.3%
Annual growth 9.1%
Theme / Subtheme Seasonal / Thanksgiving
Year 2010
Pieces 52
Availability Retired
40011 LEGO Thanksgiving Turkey
Retail $4.99
Value $19.99
Growth  300.6%
Annual growth 6.2%
Theme / Subtheme Seasonal / Halloween
Year 2010
Pieces 18
Availability Retired
40012 LEGO Halloween Pumpkin
Retail $1.99
Value $8.81
Growth  342.7%
Annual growth 6.3%
Theme / Subtheme Seasonal / Halloween
Year 2010
Pieces 18
Availability Retired
40013 LEGO Halloween Ghost
Retail $1.99
Value $6.51
Growth  227.1%
Annual growth 5.7%
Theme / Subtheme Seasonal / Halloween
Year 2010
Pieces 25
Availability Retired
40014 LEGO Halloween Bat
Retail $1.99
Value $9.69
Growth  386.9%
Annual growth 7.0%