In 1993, LEGO released 2 Promotional sets across 2 subthemes, all of these sets have been retired. Subthemes for that year included Ferries and Value Packs. For that year, the total price of all retail sets cost $15, today those sets are valued around $276, a growth of 1744%.
Most valuable 1993 LEGO Promotional set
1955 Color Line Ferry $204.23
Most owned 1993 Promotional set
1967 Five Set Bonus Pack
2 sets

1955 Color Line Ferry

Theme / Subtheme Promotional / Ferries
Year 1993
Pieces 241
Availability Retired
1955 LEGO Color Line Ferry
promotional
Value $204.23
Annual growth 8.5%

1967 Five Set Bonus Pack

Theme / Subtheme Promotional / Value Packs
Year 1993
Pieces 156
Availability Retired
1967 LEGO Five Set Bonus Pack
Retail $14.99
Value $72.24
Growth  +381.9%
Annual growth 10.7%