In 2005, LEGO released 5 Harry Potter sets in the subtheme Goblet of Fire, all of these sets have been retired. For that year, the total price of all retail sets cost $180, today those sets are valued around $1,615, a growth of 798%.
Most valuable 2005 LEGO Harry Potter set
4768 The Durmstrang Ship $391.26
Highest growth 2005 Harry Potter set
4762 Rescue from the Merpeople +1203.70%
Largest 2005 LEGO Harry Potter set
4768-2 The Durmstrang Ship with Bonus Minifigures 566 pieces
Most owned 2005 Harry Potter set
4766 Graveyard Duel
5 sets

4762 Rescue from the Merpeople

Theme / Subtheme Harry Potter / Goblet of Fire
Year 2005
Pieces / Minifigs 175 / 5
Availability Retired
4762 LEGO Harry Potter Goblet of Fire Rescue from the Merpeople
Retail $19.99
Value $260.61
Growth  +1203.7%
Annual growth 13.0%

4766 Graveyard Duel

Theme / Subtheme Harry Potter / Goblet of Fire
Year 2005
Pieces / Minifigs 548 / 6
Availability Retired
4766 LEGO Harry Potter Goblet of Fire Graveyard Duel
Retail $29.99
Value $376.80
Growth  +1156.4%
Annual growth 9.2%

4767 Harry and the Hungarian Horntail

Theme / Subtheme Harry Potter / Goblet of Fire
Year 2005
Pieces / Minifigs 265 / 3
Availability Retired
4767 LEGO Harry Potter Goblet of Fire Harry and the Hungarian Horntail
Retail $29.99
Value $287.81
Growth  +859.7%
Annual growth 5.6%

4768 The Durmstrang Ship

Theme / Subtheme Harry Potter / Goblet of Fire
Year 2005
Pieces / Minifigs 550 / 2
Availability Retired
4768 LEGO Harry Potter Goblet of Fire The Durmstrang Ship
Retail $49.99
Value $391.26
Growth  +682.7%
Annual growth 9.3%

4768-2 The Durmstrang Ship with Bonus Minifigures

Theme / Subtheme Harry Potter / Goblet of Fire
Year 2005
Pieces / Minifigs 566 / 6
Availability Retired
4768-2 LEGO Harry Potter Goblet of Fire The Durmstrang Ship with Bonus Minifigures
Retail $49.99
Value $299.00
Growth  +498.1%
Annual growth 7.2%