WWYD?

We've discussed ethics for magicians before. Here's aquestion I'd like you all to consider, and post a comment telling us what YOU would do in this situation?

It's March, and you get a client calling to book you for a Saturday night in December. You know December is always busy. This client wants an hour of close up magic from 8.30-9.30pm, the time is not flexible and they really want you because they've heard how good you are.

You know that, closer to the date, you may well get a booking to do a full show - which pays 5 times what you charge for close up, but by taking the close up show it will prevent you from taking another booking that evening.

What would you do?

1. Take the booking? (A bird in the hand is worth two in the bush?)
2. Take the booking with conditions they must agree on? (If I get a better paying gig, I'll send someone else in my stead).
3. Take the booking with conditions, but don't tell them about the conditions? (If a better gig comes up, send someone else and tell the client you hurt your back).
4. Take the booking but charge a higher price? (Seasonal adjustment).
5. Something else entirely?