In 2018, LEGO released 5 Classic Building Bigger Thinking sets, all of these sets have been retired. For that year, the total price of all retail sets cost $125, today those sets are valued around $185, a growth of 48%.
Most valuable 2018 LEGO Classic Building Bigger Thinking set
10405 Mission to Mars $105.48
Most owned 2018 Classic Building Bigger Thinking set
10401 Rainbow Fun
5 sets

10401 Rainbow Fun

Theme / Subtheme Classic / Building Bigger Thinking
Year 2018
Pieces 85
Availability Retired
10401 LEGO Building Bigger Thinking Rainbow Fun
Retail $4.99
Value $8.07
Growth  +61.7%
Annual growth 3.5%

10402 Fun Future

Theme / Subtheme Classic / Building Bigger Thinking
Year 2018
Pieces / Minifigs 186 / 1
Availability Retired
10402 LEGO Building Bigger Thinking Fun Future
Retail $9.99
Value $13.18
Growth  +31.9%
Annual growth 2.3%

10403 World Fun

Theme / Subtheme Classic / Building Bigger Thinking
Year 2018
Pieces / Minifigs 295 / 2
Availability Retired
10403 LEGO Building Bigger Thinking World Fun
Retail $19.99
Value $23.44
Growth  +17.3%
Annual growth 2.6%

10404 Ocean's Bottom

Theme / Subtheme Classic / Building Bigger Thinking
Year 2018
Pieces / Minifigs 579 / 2
Availability Retired
10404 LEGO Building Bigger Thinking Ocean's Bottom
Retail $29.99
Value $35.00
Growth  +16.7%
Annual growth 2.0%

10405 Mission to Mars

Theme / Subtheme Classic / Building Bigger Thinking
Year 2018
Pieces / Minifigs 871 / 3
Availability Retired
10405 LEGO Building Bigger Thinking Mission to Mars
Retail $59.99
Value $105.48
Growth  +75.8%
Annual growth 4.5%