In 2009, LEGO released 2 SpongeBob SquarePants sets, all of these sets have been retired. For that year, the total price of all retail sets cost $65, today those sets are valued around $546, a growth of 740%.
Most valuable 2009 SpongeBob SquarePants set
3833 Krusty Krab Adventures $275.46
Largest 2009 SpongeBob SquarePants set
3834 Good Neighbours at Bikini Bottom 425 pieces
2 sets

3833 Krusty Krab Adventures

Theme SpongeBob SquarePants
Year 2009
Pieces / Minifigs 209 / 3
Availability Retired
3833 LEGO SpongeBob SquarePants Krusty Krab Adventures
Retail $24.99
Value $275.46
Growth  +1002.3%
Annual growth 12.0%

3834 Good Neighbours at Bikini Bottom

Theme SpongeBob SquarePants
Year 2009
Pieces / Minifigs 425 / 3
Availability Retired
3834 LEGO SpongeBob SquarePants Good Neighbours at Bikini Bottom
Retail $39.99
Value $270.33
Growth  +576.0%
Annual growth 9.2%