In 1969, LEGO released 4 Universal Building Set sets across 2 subthemes, all of these sets have been retired. Subthemes for that year included Basic Set and Supplemental. For that year, the total price of all retail sets cost $75, today those sets are valued around $4,268, a growth of 5558%.
Most valuable 1969 Universal Building Set set
088 4.5V Super Set $3,225.07
Highest growth 1969 Universal Building Set set
990-2 Trees and Signs +14924.80%
Most owned 1969 Universal Building Set set
103 4.5V Motor Set with Rubber Tracks
4 sets

088 4.5V Super Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1969
Pieces 615
Availability Retired
088 LEGO 4.5V Super Set
Retail $59.99
Value $3,225.07
Growth  +5276.0%
Annual growth 6.1%

103 4.5V Motor Set with Rubber Tracks

Theme / Subtheme Universal Building Set / Supplemental
Year 1969
Pieces 32
Availability Retired
103 LEGO 4.5V Motor Set with Rubber Tracks
Retail $7.25
Value $130.48
Growth  +1699.7%
Annual growth 5.3%

140-2 Bricks 'n Motor Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1969
Pieces 96
Availability Retired
140-2 LEGO Bricks 'n Motor Set
Retail $6.95
Value $724.93
Growth  +10330.6%
Annual growth 8.7%

990-2 Trees and Signs

Theme / Subtheme Universal Building Set / Supplemental
Year 1969
Pieces 13
Availability Retired
990-2 LEGO Trees and Signs
Retail $1.25
Value $187.81
Growth  +14924.8%
Annual growth 9.4%