Mmmm, don't know if I agree with this.
I think what ur trying to say is that sex is like air 'as soon as its gone it becomes a priority,' which is true for the most part. What I'm trying to say is that I can't imagine that you would have any problems whatsoever geting laid if you:
a) aren't hideously ugly
b) have at least some game
c) have a lot of money
Having money is a huge advantage at least in getting initial atention/attraction.
If ur game is really good thats still a huge advantage over the majority of dudes. Granted a chick who wants you for your money is a bad thing but most chicks are in some way at least initially attracted to it and it is an advantage.
So...I pick money. I don't have much trouble getting laid on a fairly regular basis because Im at least decent looking and Im not a desperate creep.
Now, if we were to have to decide on one or the other, well that becomes a totally different question altogether, and one I would never want to answer lol. I think I would probably pick sex.