In 2015, LEGO released 5 Ninjago Promotional sets, all of these sets have been retired. For that year, the total price of all retail sets cost $4, today those sets are valued around $48, a growth of 1100%.
Most valuable 2015 LEGO Ninjago Promotional set
Micro Electromech Robot $16.26
Highest growth 2015 Ninjago Promotional set
5003085 Minifigure Pack +150.38%
Largest 2015 LEGO Ninjago Promotional set
Micro Morro Dragon 29 pieces
Theme / Subtheme Ninjago / Promotional
Year 2015
Pieces 26
Availability Retired
5002919 LEGO Ninjago Scenery and Dagger Trap
promotional
Value $9.00
Annual growth 5.1%
Theme / Subtheme Ninjago / Promotional
Year 2015
Pieces / Minifigs 17 / 2
Availability Retired
5003085 LEGO Ninjago Minifigure Pack
Retail $3.99
Value $9.99
Growth  +150.4%
Annual growth 7.9%
Theme / Subtheme Ninjago / Promotional
Year 2015
Pieces 18
Availability Retired
LEGO Ninjago Micro Shinto Shrine
promotional
Value $6.34
Annual growth 8.4%
Theme / Subtheme Ninjago / Promotional
Year 2015
Availability Retired
LEGO Ninjago Micro Electromech Robot
promotional
Value $16.26
Annual growth 12.3%
Theme / Subtheme Ninjago / Promotional
Year 2015
Pieces 29
Availability Retired
LEGO Ninjago Micro Morro Dragon
promotional
Value $6.29
Annual growth 13.9%