In 2015, LEGO released 5 Scooby-Doo sets, all of these sets have been retired. For that year, the total price of all retail sets cost $205, today those sets are valued around $1,351, a growth of 559%.
Most valuable 2015 LEGO Scooby-Doo set
75904 Mystery Mansion $556.91
Highest growth 2015 Scooby-Doo set
75902 The Mystery Machine +853.18%
5 sets

75900 Mummy Museum Mystery

Theme Scooby-Doo
Year 2015
Pieces / Minifigs 110 / 2
Availability Retired
75900 LEGO Scooby-Doo Mummy Museum Mystery
Retail $14.99
Value $99.98
Growth  +567.0%
Annual growth 14.5%

75901 Mystery Plane Adventures

Theme Scooby-Doo
Year 2015
Pieces / Minifigs 128 / 2
Availability Retired
75901 LEGO Scooby-Doo Mystery Plane Adventures
Retail $19.99
Value $138.45
Growth  +592.6%
Annual growth 15.6%

75902 The Mystery Machine

Theme Scooby-Doo
Year 2015
Pieces / Minifigs 301 / 3
Availability Retired
75902 LEGO Scooby-Doo The Mystery Machine
Retail $29.99
Value $285.86
Growth  +853.2%
Annual growth 16.9%

75903 Haunted Lighthouse

Theme Scooby-Doo
Year 2015
Pieces / Minifigs 437 / 4
Availability Retired
75903 LEGO Scooby-Doo Haunted Lighthouse
Retail $49.99
Value $270.00
Growth  +440.1%
Annual growth 14.9%

75904 Mystery Mansion

Theme Scooby-Doo
Year 2015
Pieces / Minifigs 860 / 6
Availability Retired
75904 LEGO Scooby-Doo Mystery Mansion
Retail $89.99
Value $556.91
Growth  +518.9%
Annual growth 17.0%