In 1999, LEGO released 8 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 $364, today those sets are valued around $1,874, a growth of 415%.
Most valuable 1999 LEGO Trains set
4560 Railway Express $691.54
Highest growth 1999 Trains set
4533 Train Track Snow Remover +872.08%
Largest 1999 LEGO Trains set
4561 Railway Express 665 pieces
8 sets

4519 Rail Crossing

Theme / Subtheme Trains / 9V
Year 1999
Pieces 1
Availability Retired
4519 LEGO Trains Rail Crossing
Retail $9.99
Value $43.18
Growth  +332.2%
Annual growth 5.3%

4533 Train Track Snow Remover

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 58 / 1
Availability Retired
4533 LEGO Train Track Snow Remover
Retail $8.99
Value $87.39
Growth  +872.1%
Annual growth 6.4%

4541 Rail and Road Service Truck

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 122 / 2
Availability Retired
4541 LEGO Trains Rail and Road Service Truck
Retail $12.99
Value $92.27
Growth  +610.3%
Annual growth 4.3%

4553 Train Wash

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 185 / 2
Availability Retired
4553 LEGO Train Wash
Retail $29.99
Value $157.79
Growth  +426.1%
Annual growth 6.6%

4556 Train Station

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 236 / 7
Availability Retired
4556 LEGO Train Station
Retail $41.99
Value $140.90
Growth  +235.6%
Annual growth 4.8%

4557 Freight Loading Station

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 215 / 2
Availability Retired
4557 LEGO Trains Freight Loading Station
Retail $29.99
Value $139.42
Growth  +364.9%
Annual growth 6.1%

4560 Railway Express

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 658 / 9
Availability Retired
4560 LEGO Trains Railway Express
Retail $99.99
Value $691.54
Growth  +591.6%
Annual growth 8.7%

4561 Railway Express

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 665 / 9
Availability Retired
4561 LEGO Trains Railway Express
Retail $129.99
Value $521.06
Growth  +300.8%
Annual growth 4.0%