Most Valuable LEGO Sets of 1991

The most valuable LEGO sets released in 1991, 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 Dacta Space Theme Set at $2,646. The top 5 alone account for about 39% of the value on this list. Every entry links to its full price history and marketplace listings. Updated 2026-07-22.

#	Name	Value	Growth	/ piece
1	Dacta Space Theme Set Dacta · 1991	$2,646	+3208%	$4.92
2	Rock Island Refuge Pirates · 1991	$1,847	+2699%	$4.85
3	Metroliner Trains · 1991	$1,797	+1183%	$2.29
4	Crocodile Locomotive Trains · 1991	$1,037	+1974%	$3.30
5	Barbecue Duplo · 1991	$1,000	+12416%	$90.91
6	Launch & Load Seaport Town · 1991	$902	+908%	$0.84
7	Intercoastal Seaport Town · 1991	$783	+1128%	$1.44
8	Lagoon Lock-Up Pirates · 1991	$625	+2054%	$3.24
9	Spectral Starguider Space · 1991	$600	+2301%	$2.88
10	Load N' Haul Railroad Trains · 1991	$550	+358%	$1.15
11	Alpha Centauri Outpost Space · 1991	$525	+556%	$1.29
12	Metro Station Trains · 1991	$500	+594%	$0.83
13	Railroad Tractor Flatbed Trains · 1991	$467	+2023%	$2.62
14	Five Set Bonus Pack Assorted · 1991	$425	—	$2.69
15	Aerial Intruder Space · 1991	$423	+1309%	$1.58
16	Jetport Fire Squad Town · 1991	$408	+1385%	$2.57
17	Monorail Accessory Track Town · 1991	$400	+1043%	$7.41
18	Custom Rally Van Model Team · 1991	$340	+587%	$0.65
19	Theme Set Dacta · 1991	$328	+557%	$0.36
20	Night Patroller Town · 1991	$300	+1100%	$2.14
21	Firefighter Boats · 1991	$300	—	$0.83
22	Whirlwind Rescue Technic · 1991	$282	+605%	$0.55
23	Town Environment Dacta · 1991	$280	+133%	$0.45
24	Minifig Pack Space · 1991	$275	+5401%	$6.24
25	People Dacta · 1991	$255	+538%	$7.09
26	Evacuation Team Town · 1991	$252	—	$1.07
27	Police Patrol Boats · 1991	$250	+636%	$1.28
28	Large LEGO Basic Set Dacta · 1991	$233	—	$0.37
29	Tri-Wheeled Tyrax Space · 1991	$204	+3313%	$5.24
30	Allied Avenger Space · 1991	$200	+2422%	$2.00
31	Coastal Cutter Town · 1991	$200	+953%	$1.08
32	Arla Milk Delivery Truck Town · 1991	$196	—	$1.69
33	Fire Dispatch Duplo · 1991	$194	+1837%	$10.75
34	Manual Level Crossing Trains · 1991	$190	+659%	$1.73
35	Airport Security Squad Town · 1991	$180	+1701%	$1.48
36	Brick Vac Basic · 1991	$175	+1659%	$1.33
37	DUPLO Family Duplo · 1991	$174	+1644%	$21.78
38	Sailor and Parrot Duplo · 1991	$170	+3307%	$8.95
39	Building Set Duplo · 1991	$168	+1997%	$5.78
40	Cabin Cruiser Boats · 1991	$159	+705%	$1.77
41	Broadside's Brig Pirates · 1991	$158	+1700%	$2.32
42	Shock Cycle Technic · 1991	$139	+368%	$0.55
43	Train Motor 9V Service Packs · 1991	$139	+456%	$46.33
44	Cargomaster Crane Town · 1991	$133	+939%	$0.95
45	Express Train Duplo · 1991	$130	+550%	$3.42
46	Blaze Battler Town · 1991	$127	+751%	$1.01
47	Decorated Elements Service Packs · 1991	$113	+5569%	$4.34
48	Large Play Bucket, 3+ Basic · 1991	$108	+442%	$0.24
49	Flying School Duplo · 1991	$105	+710%	$2.92
50	Renegade's Raft Pirates · 1991	$100	+2977%	$2.63