In 1990, LEGO released 2 Technic Universal sets, all of these sets have been retired. For that year, the total price of all retail sets cost $154, today those sets are valued around $794, a growth of 416%.
Most valuable 1990 LEGO Technic Universal set
8094 Control Centre $688.55
Theme / Subtheme Technic / Universal
Year 1990
Pieces 219
Availability Retired
8064 LEGO Technic Universal Motor Set
Retail $54.99
Value $105.85
Growth  +92.5%
Annual growth 2.0%
Theme / Subtheme Technic / Universal
Year 1990
Pieces 546
Availability Retired
8094 LEGO Technic Universal Control Centre
Retail $99.00
Value $688.55
Growth  +595.5%
Annual growth 6.5%