In 1998, LEGO released 20 Space sets across 6 subthemes, all of these sets have been retired. Subthemes for that year included Ice Planet 2002, Insectoids, Space Police 2, Spyrius, UFO, and Value Packs. For that year, the total price of all retail sets cost $284, today those sets are valued around $2,000, a growth of 605%.
Most valuable 1998 LEGO Space set
6977 Arachnoid Star Base $438.39
Highest growth 1998 Space set
3015 Space Police Car +3315.08%
Most owned 1998 Space set
6903 Bug Blaster
Theme / Subtheme Space / Value Packs
Year 1998
Pieces 172
Availability Retired
2490 LEGO Insectoids Combined Set with Mast
Retail $24.97
Value $99.07
Growth  +296.8%
Annual growth 5.4%
Theme / Subtheme Space / UFO
Year 1998
Pieces / Minifigs 18 / 1
Availability Retired
2543 LEGO UFO Spacecraft
Retail $1.99
Value $24.25
Growth  +1118.6%
Annual growth 6.7%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 46 / 1
Availability Retired
2964 LEGO Insectoids Space Spider
Retail $5.99
Value $58.34
Growth  +874.0%
Annual growth 9.2%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 73 / 2
Availability Retired
2965 LEGO Insectoids Hornet Scout
Retail $7.99
Value $82.20
Growth  +928.8%
Annual growth 9.9%
Theme / Subtheme Space / UFO
Year 1998
Pieces / Minifigs 20 / 1
Availability Retired
3012 LEGO UFO Space Hover
promotional
Value $45.37
Annual growth 3.5%
Theme / Subtheme Space / Spyrius
Year 1998
Pieces / Minifigs 23 / 1
Availability Retired
3013 LEGO Spyrius Space Jet
promotional
Value $83.74
Annual growth 15.6%
Theme / Subtheme Space / Ice Planet 2002
Year 1998
Pieces / Minifigs 19 / 1
Availability Retired
3014 LEGO Ice Planet 2002 Ice Planet Scooter
promotional
Value $59.56
Annual growth 13.1%
Theme / Subtheme Space / Space Police 2
Year 1998
Pieces / Minifigs 23 / 1
Availability Retired
3015 LEGO Space Police 2 Space Police Car
Retail $1.99
Value $67.96
Growth  +3315.1%
Annual growth 14.6%
Theme / Subtheme Space / UFO
Year 1998
Pieces / Minifigs 36 / 1
Availability Retired
4305 LEGO UFO Cyborg Scout
promotional
Value $38.99
Annual growth 7.5%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 33 / 1
Availability Retired
6817 LEGO Insectoids Beta Buzzer
Retail $3.99
Value $33.69
Growth  +744.4%
Annual growth 5.6%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 58 / 1
Availability Retired
6837 LEGO Insectoids Cosmic Creeper
Retail $7.99
Value $59.52
Growth  +644.9%
Annual growth 7.5%
Theme / Subtheme Space / UFO
Year 1998
Pieces / Minifigs 20 / 1
Availability Retired
6901-2 LEGO UFO Space Plane
Retail $1.99
Value $28.27
Growth  +1320.6%
Annual growth 6.9%
Theme / Subtheme Space / UFO
Year 1998
Pieces / Minifigs 20 / 1
Availability Retired
6902 LEGO UFO Space Plane
Retail $1.99
Value $25.95
Growth  +1204.0%
Annual growth 6.8%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 25 / 1
Availability Retired
6903 LEGO Insectoids Bug Blaster
Retail $2.99
Value $45.00
Growth  +1405.0%
Annual growth 8.1%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 114 / 2
Availability Retired
6905 LEGO Insectoids Bi-Wing Blaster
Retail $14.99
Value $130.96
Growth  +773.6%
Annual growth 7.1%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 96 / 1
Availability Retired
6907 LEGO Insectoids Sonic Stinger
Retail $21.99
Value $130.38
Growth  +492.9%
Annual growth 5.2%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 96 / 1
Availability Retired
6909 LEGO Insectoids Sonic Stinger
Retail $19.99
Value $280.33
Growth  +1302.4%
Annual growth 9.8%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 250 / 2
Availability Retired
6919 LEGO Insectoids Planetary Prowler
Retail $34.99
Value $90.97
Growth  +160.0%
Annual growth 3.7%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 256 / 3
Availability Retired
6969 LEGO Insectoids Celestial Stinger
Retail $49.99
Value $177.53
Growth  +255.1%
Annual growth 3.1%
Theme / Subtheme Space / Insectoids
Year 1998
Pieces / Minifigs 437 / 4
Availability Retired
6977 LEGO Insectoids Arachnoid Star Base
Retail $79.99
Value $438.39
Growth  +448.1%
Annual growth 6.3%