In 1980, LEGO released 4 Dacta sets in the subtheme Duplo, all of these sets have been retired.
Most valuable 1980 LEGO Dacta set
1041-2 Educational Duplo Building Set $160.66
Largest 1980 LEGO Dacta set
1075 LEGO People Supplementary Set 304 pieces
Theme / Subtheme Dacta / Duplo
Year 1980
Pieces 68
Availability Retired
1041-2 LEGO Dacta Educational Duplo Building Set
Retail $36.49
Value $160.66
Growth  340.3%
Annual growth 3.4%
Theme Dacta
Year 1980
Minifigs 3
Availability Retired
1050-2 LEGO Dacta Universal Set for Boys and Girls
Value $156.37
Theme Dacta
Year 1980
Pieces 304
Availability Retired
1075 Dacta LEGO People Supplementary Set
Retail $14.49
Value $36.67
Growth  153.1%
Annual growth 2.1%
Theme Dacta
Year 1980
Pieces 148
Availability Retired
1076-2 Dacta LEGO Car and Truck Supplementary Set
Retail $14.50
Value $14.91
Growth  2.8%