In 1994, LEGO released 3 Trains sets in the subtheme 9 V, all of these sets have been retired. For that year, the total price of all retail sets cost $163, today those sets are valued around $1,020, a growth of 527%.
Most valuable 1994 LEGO Trains set
4564 Freight Rail Runner $750.58
Highest growth 1994 Trains set
4525 Road and Rail Repair +1104.50%
3 sets

4525 Road and Rail Repair

Theme / Subtheme Trains / 9V
Year 1994
Pieces / Minifigs 84 / 1
Availability Retired
4525 LEGO Trains Road and Rail Repair
Retail $9.99
Value $120.33
Growth  +1104.5%
Annual growth 6.3%

4544 Car Transport Wagon with Car

Theme / Subtheme Trains / 9V
Year 1994
Pieces / Minifigs 143 / 1
Availability Retired
4544 LEGO Trains Car Transport Wagon with Car
Retail $18.75
Value $148.93
Growth  +694.3%
Annual growth 6.9%

4564 Freight Rail Runner

Theme / Subtheme Trains / 9V
Year 1994
Pieces / Minifigs 587 / 3
Availability Retired
4564 LEGO Trains Freight Rail Runner
Retail $134.00
Value $750.58
Growth  +460.1%
Annual growth 2.9%