It cost 400000 dollars to...

[Riykku]

It cost 400,000 dollars to use GIMP, for 12 seconds.

[noahzhang]

it costs 400000 to use a program like photoshop by adobe for 12 seconds.

[Riykku]

It cost 400,000 dollars to eat cake for 12 seconds.

[AuburnAttack21]

it cost 400000 to make me beleive that global warming exist for 12 seconds...

It costs 400,000 to have Al Gore stop trying to get more money for 12 seconds

[Riykku]

It cost 400,000 dollars to divide by 0, for 12 seconds.
Mainly cuz of the damage it creates afterwards, considering you survived.

[AuburnAttack21]

ASSUMING you survived...for 12 seconds.

[Riykku]

It cost 400,000 dollars to create a cake that is not a lie, for 12 seconds.

[AuburnAttack21]

It costs 400000 to shut GLaDOS up for 12 seconds

[Riykku]

It cost 400,000 dollars to spam asdf, for 12 seconds.

[AuburnAttack21]

It costs 400000 to have greeny back, for 17 seconds