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 $3,174, a growth of 5150%.
Most valuable 1980 LEGO Space set
6970 Beta I Command Base $1,725.13
Highest growth 1980 Space set
6841 Mineral Detector +8514.54%
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 $181.81
Growth  +7201.6%
Annual growth 4.6%

6841 Mineral Detector

Theme / Subtheme Space / Classic
Year 1980
Pieces / Minifigs 44 / 1
Availability Retired
6841 LEGO Mineral Detector
Retail $3.99
Value $343.72
Growth  +8514.5%
Annual growth 6.9%

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 $282.64
Growth  +6983.7%
Annual growth 4.3%

6901 Mobile Lab

Theme / Subtheme Space / Classic
Year 1980
Pieces / Minifigs 135 / 2
Availability Retired
6901 LEGO Mobile Lab
Retail $12.99
Value $640.60
Growth  +4831.5%
Annual growth 8.8%

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 $1,725.13
Growth  +4563.8%
Annual growth 6.4%