In 1978, LEGO released 3 Building Set with People sets, all of these sets have been retired. For that year, the total price of all retail sets cost $21, today those sets are valued around $742, a growth of 3438%.
Most valuable 1978 Building Set with People set
340-2 Fire Trucks $495.05
Highest growth 1978 Building Set with People set
208 Mother with Baby +5097.99%
Theme Building Set with People
Year 1978
Pieces / Figures 46 / 1
Availability Retired
208 LEGO Mother with Baby
Retail $3.49
Value $181.41
Growth  +5098.0%
Annual growth 5.1%
Theme Building Set with People
Year 1978
Pieces 211
Availability Retired
330-2 LEGO Gas Station
Retail $7.49
Value $65.52
Growth  +774.8%
Annual growth 4.7%
Theme Building Set with People
Year 1978
Pieces 274
Availability Retired
340-2 LEGO Fire Trucks
Retail $9.99
Value $495.05
Growth  +4855.5%
Annual growth 8.7%