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 $1,720, a growth of 373%.
Most valuable 1999 LEGO Trains set
4560 Railway Express $498.23
Highest growth 1999 Trains set
4533 Train Track Snow Remover +982.98%
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 $48.16
Growth  +382.1%
Annual growth 3.1%

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 $97.36
Growth  +983.0%
Annual growth 6.6%

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 $96.84
Growth  +645.5%
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 $165.15
Growth  +450.7%
Annual growth 6.5%

4556 Train Station

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 236 / 7
Availability Retired
4556 LEGO Train Station
Retail $41.99
Value $139.17
Growth  +231.4%
Annual growth 4.5%

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 $230.16
Growth  +667.5%
Annual growth 4.8%

4560 Railway Express

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 658 / 9
Availability Retired
4560 LEGO Trains Railway Express
Retail $99.99
Value $498.23
Growth  +398.3%
Annual growth 6.0%

4561 Railway Express

Theme / Subtheme Trains / 9V
Year 1999
Pieces / Minifigs 665 / 9
Availability Retired
4561 LEGO Trains Railway Express
Retail $129.99
Value $445.33
Growth  +242.6%
Annual growth 3.7%