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 $1,512, a growth of 740%.
Most valuable 2005 LEGO Harry Potter set
4766 Graveyard Duel $351.36
Largest 2005 LEGO Harry Potter set
4768-2 The Durmstrang Ship with Bonus Minifigures 566 pieces
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 $228.12
Growth  +1041.2%
Annual growth 12.3%

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 $351.36
Growth  +1071.6%
Annual growth 9.1%

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 $291.55
Growth  +872.2%
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 $333.79
Growth  +567.7%
Annual growth 8.8%

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 $306.84
Growth  +513.8%
Annual growth 7.3%