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 $1,328, a growth of 2610%.
Most valuable 2014 LEGO Exclusive LEGO Internal set
4000015 LOM Building B $499.99
Highest growth 2014 Exclusive LEGO Internal set
4000016 Billund Airport +162.67%
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 $200.00
Annual growth 22.5%

4000015 LOM Building B

Theme / Subtheme Exclusive / LEGO Internal
Year 2014
Pieces 215
Availability Retired
4000015 LOM Building B
Value $499.99
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 $128.71
Growth  +162.7%
Annual growth 6.5%

4000019 Brand Identity and Experience

Theme / Subtheme Exclusive / LEGO Internal
Year 2014
Pieces 101
Availability Retired
4000019 Brand Identity and Experience
Value $499.07
Annual growth 28.9%