In 2014, LEGO released 4 Exclusive LEGO Internal sets, all of these sets have been retired. For that year, the total price of all retail sets cost $49, today those sets are valued around $1,306, a growth of 2564%.
Most valuable 2014 LEGO Exclusive LEGO Internal set
4000015 LOM Building B $504.68
Highest growth 2014 Exclusive LEGO Internal set
4000016 Billund Airport +164.41%
Largest 2014 LEGO Exclusive LEGO Internal set
4000011 Nyiregyhaza Factory 327 pieces
4 sets

4000011 Nyiregyhaza Factory

Theme / Subtheme Exclusive / LEGO Internal
Year 2014
Pieces 327
Availability Retired
4000011 Nyiregyhaza Factory
Value $198.90
Annual growth 22.2%

4000015 LOM Building B

Theme / Subtheme Exclusive / LEGO Internal
Year 2014
Pieces 215
Availability Retired
4000015 LOM Building B
Value $504.68
Annual growth 35.4%

4000016 Billund Airport

Theme / Subtheme Exclusive / LEGO Internal
Year 2014
Pieces 281
Availability Retired
4000016 Billund Airport
Retail $49.00
Value $129.56
Growth  +164.4%
Annual growth 5.2%

4000019 Brand Identity and Experience

Theme / Subtheme Exclusive / LEGO Internal
Year 2014
Pieces 101
Availability Retired
4000019 Brand Identity and Experience
Value $472.45
Annual growth 28.3%