In 1972, LEGO released 16 LEGOLAND sets across 3 subthemes, all of these sets have been retired. Subthemes for that year included Building, Town, and Vehicle. For that year, the total price of all retail sets cost $97, today those sets are valued around $5,567.
Most valuable 1972 LEGOLAND set
1550 Sterling Super Caravelle $1,341.24
Largest 1972 LEGOLAND set
355 Town Center Set with Roadways 336 pieces
Most owned 1972 LEGOLAND set
354 Police Heliport
16 sets

352 Windmill and Lorry

Theme / Subtheme LEGOLAND / Building
Year 1972
Pieces 142
Availability Retired
352 LEGOLAND Windmill and Lorry
Retail $7.75
Value $371.34
Growth  +4691.5%
Annual growth 7.4%

353 Terrace House with Car and Garage

Theme / Subtheme LEGOLAND / Building
Year 1972
Pieces 152
Availability Retired
353 LEGOLAND Terrace House with Car and Garage
Retail $9.95

354 Police Heliport

Theme / Subtheme LEGOLAND / Town
Year 1972
Pieces 168
Availability Retired
354 LEGOLAND Town Police Heliport
Retail $9.95

355 Town Center Set with Roadways

Theme / Subtheme LEGOLAND / Town
Year 1972
Pieces 336
Availability Retired
355 LEGOLAND Town Center Set with Roadways
Retail $15.50
Value $1,301.18
Growth  +8294.7%
Annual growth 8.6%

378 Tractor

Theme / Subtheme LEGOLAND / Vehicle
Year 1972
Pieces 36
Availability Retired
378 LEGOLAND Tractor
Retail $6.49
Value $411.44
Growth  +6239.6%
Annual growth 4.7%

379-2 Car and Caravan

Theme LEGOLAND
Year 1972
Pieces 93
Availability Retired
379-2 LEGOLAND Car and Caravan
Retail $2.25
Value $453.60
Growth  +20060.0%
Annual growth 10.3%

606-2 Tipper Lorry

Theme / Subtheme LEGOLAND / Vehicle
Year 1972
Pieces 22
Availability Retired
606-2 LEGOLAND Tipper Lorry
Retail $3.49
Value $124.75
Growth  +3474.5%
Annual growth 6.9%

609 Aeroplane

Theme LEGOLAND
Year 1972
Pieces 28
Availability Retired
609 LEGOLAND Aeroplane
Retail $2.15
Value $72.95
Growth  +3293.0%
Annual growth 4.7%

649 Low Loader Excavator

Theme / Subtheme LEGOLAND / Vehicle
Year 1972
Pieces 35
Availability Retired
649 LEGOLAND Low Loader Excavator
Retail $4.49
Value $146.94
Growth  +3172.6%
Annual growth 6.7%

650 Car with Trailer and Racing Car

Theme / Subtheme LEGOLAND / Vehicle
Year 1972
Pieces 40
Availability Retired
650 LEGOLAND Car with Trailer and Racing Car
Retail $3.49
Value $154.63
Growth  +4330.7%
Annual growth 7.3%

651 Tow Truck and Car

Theme / Subtheme LEGOLAND / Vehicle
Year 1972
Pieces 40
Availability Retired
651 LEGOLAND Tow Truck and Car
Retail $5.49
Value $184.52
Growth  +3261.0%
Annual growth 6.7%

652-2 Forklift with Trailer

Theme / Subtheme LEGOLAND / Vehicle
Year 1972
Pieces 34
Availability Retired
652-2 LEGOLAND Forklift with Trailer
Retail $5.29
Value $183.75
Growth  +3373.5%
Annual growth 6.8%

684 Low-Loader Truck with Forklift

Theme / Subtheme LEGOLAND / Vehicle
Year 1972
Pieces 53
Availability Retired
684 LEGOLAND Low-Loader Truck with Forklift
Retail $7.49
Value $218.18
Growth  +2813.0%
Annual growth 3.3%

685 LEGOLAND Truck with Trailer

Theme / Subtheme LEGOLAND / Town
Year 1972
Pieces 51
Availability Retired
685 Town LEGOLAND Truck with Trailer
Retail $4.49
Value $258.48
Growth  +5656.8%
Annual growth 7.8%

1550 Sterling Super Caravelle

Theme LEGOLAND
Year 1972
Pieces 49
Availability Retired
1550 LEGOLAND Sterling Super Caravelle
Retail $4.49
Value $1,341.24
Growth  +29771.7%
Annual growth 11.1%

1551-2 Sterling Baggage Train

Theme LEGOLAND
Year 1972
Pieces 49
Availability Retired
1551-2 LEGOLAND Sterling Baggage Train
Retail $4.49
Value $343.54
Growth  +7551.2%
Annual growth 8.4%