I found something:

From the script :

Quote
These shoes were eighty-five dollars. Does the superheroes union cover expenses?
Kathryn

Edit:

Here is the episode with the auction

I\'m looking through you

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MISTRESS OF CEREMONIES
And now, something really special. A Super Date. A Sunday picnic in the clouds. So, Ladies, what will you give me for the Man Of Steel?


A veritable feeding frenzy as every woman in the room rushes to the front. Again, Lois fights to get near the stage.

FIRST WOMAN: One thousand!

LOIS: Fifteen hundred!

CAT: Two thousand!

Lois can't believe this. She's actually bidding for Superman against Cat. She steps in front of her.

LOIS: Twenty-five hundred!

FIRST WOMAN: Five thousand.

CAT: Six!

Lois leans into Cat.

LOIS: All right, you've made your point. Now... butt out.

CAT What's the matter, Lois? Too rich for your blood?

FIRST WOMAN
Eight thousand!

CAT: Nine!

Lois sags. She can't match this price. Then...

DEBUTANTE (O.S.): Fifty thousand dollars.
And then:

Quote
I was saving for Tahiti. But a date with Superman... that would have been a real adventure.
(beat)
Oh, Clark. He doesn't even know I'm alive. Maybe it was stupid of me to think that he really cared.


Kathryn