There is only a limited number of clinics and doctors, the waiting lists are huge! It doesn't matter that they pay cash, if they take the spot of a woman in genuine need, it is wrong.

The original question about about fertile couples using IVF for the purpose of getting twins, please stick to the question. Your response was probably offensive to many who have struggled through the IVF process.
I am sorry.Where I live there are many many fertility doctors and offices.Here there is no wait.I'm shure a woman also wanting the treatment will be able to get a appointment.
I see no reason why it would matter if a couple had IVF to increase the chances of having twins.That is betewwn the doctor and the couple.God bless them for being able to have children (with or without IVF).I will soon be going threw IVF.If it worked for others maybe it will work for me too.I (like most) dont like pain.I dont know why anyone would want to go threw pain if there is no reason to.