$5000 sounds like the "overnight charge".
$1800 NC +$3000 escort + $450 love hotel overnight.

If you are willing to pay this amount, then you will have a good selection at the club, though not every chick can play overnight with you.  But, money talks.

Moreover, most chicks are the same.  They move from one NC to another.  You see her at club A today & club B next month. Sometimes they even move to different districts.  e.g. TST to MKG then Jordon & TST again.

How much is too much, everyone has his own budget.  As long as he knows what he is doing & doesn't complain on the next morning, then it is fine.  Men tend to act hero in front of women, especially at places like NC.  The chicks will simply smile or laugh when there is such offer, and there is no harm for them to accept.  Bear in mind that it is their "work" & they "earn" it the hard way.

If you ask me, this price tag is for overnight full escort service.  I make my demands clear with the chick before going ahead.  No regret no complain after.