In 2015, LEGO released 10 Classic sets. For that year, the total price of all retail sets cost $268, today those sets are valued around $423, a growth of 158%.
Most valuable 2015 LEGO Classic set
10697 XXXL Box $132.15
Highest growth 2015 Classic set
10699 32x32 Sand Baseplate +214.77%
Most owned 2015 Classic set
10696 Medium Creative Brick Box
Theme Classic
Year 2015
Pieces 221
Availability Retired
10692 LEGO Creative Bricks
Retail $16.99
Value $20.00
Growth  17.7%
Annual growth 7.1%
Theme Classic
Year 2015
Pieces 303
Availability Retired
10693 LEGO Creative Supplement
Retail $19.99
Value $23.87
Growth  19.4%
Annual growth 3.9%
Theme Classic
Year 2015
Pieces 303
Availability Retired
10694 LEGO Creative Supplement Bright
Retail $19.99
Value $24.08
Growth  20.5%
Annual growth 2.4%
Theme Classic
Year 2015
Pieces 580
Availability Retired
10695 LEGO Creative Building Box
Retail $24.99
Value $54.57
Growth  118.4%
Annual growth 9.7%
Theme Classic
Year 2015
Pieces 484
Availability Retail
10696 LEGO Medium Creative Brick Box
Retail $34.99
Available at retail
Theme Classic
Year 2015
Pieces 1,500
Availability Retired
10697 LEGO XXXL Box
Retail $59.99
Value $132.15
Growth  120.3%
Annual growth 8.1%
Theme Classic
Year 2015
Pieces 790
Availability Retail
10698 LEGO Large Creative Brick Box
Retail $59.99
Available at retail
Theme Classic
Year 2015
Pieces 1
Availability Retired
10699 LEGO 32x32 Sand Baseplate
Retail $7.99
Value $25.15
Growth  214.8%
Annual growth 12.5%
Theme Classic
Year 2015
Pieces 1
Availability Retired
10700 LEGO 32x32 Green Baseplate
Retail $7.99
Value $19.55
Growth  144.7%
Annual growth 23.7%
Theme Classic
Year 2015
Pieces 1
Availability Retired
10701 LEGO 48x48 Grey Baseplate
Retail $14.99
Value $27.25
Growth  81.8%
Annual growth 5.5%