In 1980, LEGO released 5 Space sets in the subtheme Classic, all of these sets have been retired. For that year, the total price of all retail sets cost $60, today those sets are valued around $2,981, a growth of 4831%.
Most valuable 1980 LEGO Space set
6970 Beta I Command Base $1,600.35
Highest growth 1980 Space set
6841 Mineral Detector +8499.25%
5 sets

6821 Shovel Buggy

Theme / Subtheme Space / Classic
Year 1980
Pieces / Minifigs 28 / 1
Availability Retired
6821 LEGO Shovel Buggy
Retail $2.49
Value $169.82
Growth  +6720.1%
Annual growth 4.5%

6841 Mineral Detector

Theme / Subtheme Space / Classic
Year 1980
Pieces / Minifigs 44 / 1
Availability Retired
6841 LEGO Mineral Detector
Retail $3.99
Value $343.11
Growth  +8499.2%
Annual growth 6.7%

6861 X1 Patrol Craft

Theme / Subtheme Space / Classic
Year 1980
Pieces / Minifigs 55 / 1
Availability Retired
6861 LEGO X1 Patrol Craft
Retail $3.99
Value $267.72
Growth  +6609.8%
Annual growth 9.5%

6901 Mobile Lab

Theme / Subtheme Space / Classic
Year 1980
Pieces / Minifigs 135 / 2
Availability Retired
6901 LEGO Mobile Lab
Retail $12.99
Value $600.00
Growth  +4518.9%
Annual growth 8.6%

6970 Beta I Command Base

Theme / Subtheme Space / Classic
Year 1980
Pieces / Minifigs 264 / 4
Availability Retired
6970 LEGO Beta I Command Base
Retail $36.99
Value $1,600.35
Growth  +4226.4%
Annual growth 6.2%