Most Valuable LEGO Sets of 1999

The most valuable LEGO sets released in 1999, by current market value. This list ranks 50 sets by current BrickPicker value, refreshed from live market data. Right now the top spot belongs to Robotics Invention System Upgrade Kit at $1,199. The top 5 alone account for about 27% of the value on this list. Every entry links to its full price history and marketplace listings. Updated 2026-07-21.

#	Name	Value	Growth	/ piece
1	Robotics Invention System Upgrade Kit Mindstorms · 1999	$1,199	+4698%	$17.13
2	Amazon Ancient Ruins Adventurers · 1999	$928	+1060%	$2.03
3	Expedition Balloon Adventurers · 1999	$800	+3902%	$4.57
4	Racing Truck Model Team · 1999	$700	+776%	$0.89
5	Medium Bucket, Yellow Duplo · 1999	$640	+4827%	$12.80
6	River Expedition Adventurers · 1999	$600	+1100%	$1.89
7	Rock Raiders HQ Rock Raiders · 1999	$550	+588%	$1.35
8	Super Value Pack Assorted · 1999	$429	—	$0.91
9	Railway Express Trains · 1999	$400	+208%	$0.60
10	Super Rescue Complex Town · 1999	$400	+426%	$1.20
11	Emperor's Stronghold Castle · 1999	$390	+875%	$1.18
12	My Little Lily Pond Primo · 1999	$360	—	$45.00
13	Mos Espa Podrace Star Wars · 1999	$345	+284%	$0.39
14	Super Street Sensation Technic · 1999	$342	+163%	$0.24
15	Milk Delivery Truck Town · 1999	$321	—	$3.38
16	Tunnel Transport Rock Raiders · 1999	$320	+540%	$0.91
17	Duplo Play Wall Education · 1999	$306	+92%	$76.58
18	McDonalds Restaurant Town · 1999	$297	+2873%	$3.38
19	Chrome Crusher Rock Raiders · 1999	$290	+867%	$1.73
20	ROBOLAB Starter Building Set Education · 1999	$275	—	$0.17
21	Marie's Room Scala · 1999	$270	+440%	$2.41
22	X-wing Fighter Star Wars · 1999	$260	+767%	$0.98
23	Little Forest Friends Education · 1999	$255	—	$2.13
24	Gungan Sub Star Wars · 1999	$240	+380%	$0.63
25	Railway Express Trains · 1999	$231	+131%	$0.35
26	Crane Truck Technic · 1999	$231	+285%	$0.40
27	Robotics Discovery Set Mindstorms · 1999	$230	+53%	$0.59
28	Freight Loading Station Trains · 1999	$222	+640%	$1.03
29	Robotics Invention System 1.5 Mindstorms · 1999	$215	+8%	$0.30
30	Andrea in Jogging Suit Scala · 1999	$210	—	$23.29
31	Loader Dozer Rock Raiders · 1999	$203	+913%	$2.25
32	Ninja Master's Boat Castle · 1999	$200	—	$9.52
33	Traffic Signs Education · 1999	$200	+692%	$1.16
34	White Ninja Castle · 1999	$200	+6585%	$8.69
35	Dinosaur Babies Duplo · 1999	$197	+1871%	$10.37
36	The Mission Technic · 1999	$196	+96%	$0.30
37	TIE Fighter & Y-wing Star Wars · 1999	$195	+290%	$0.48
38	Red Ninja's Dragon Glider Castle · 1999	$186	—	$9.31
39	Sith Infiltrator Star Wars · 1999	$185	+517%	$0.76
40	Cosmo Glider Town · 1999	$180	+8945%	$9.47
41	Ninja Fire Fortress Castle · 1999	$180	+500%	$1.08
42	Mission Control Town · 1999	$170	+113%	$0.34
43	Granite Grinder Rock Raiders · 1999	$170	+1034%	$1.56
44	Lila, the Big Bluebell Duplo · 1999	$166	+728%	$4.87
45	Train Wash Trains · 1999	$164	+447%	$0.89
46	Light & Sound Dump Truck Duplo · 1999	$163	+809%	$13.62
47	Drill Craft Rock Raiders · 1999	$162	—	$5.98
48	Naboo Fighter Star Wars · 1999	$160	+700%	$0.89
49	Space Port Value Pack Town · 1999	$160	—	$1.24
50	Dragster Town · 1999	$160	—	$6.40