Canada, New Zealand and Australia have point system because these countries have a very low populations with respect to the land area. But it is not so in the case of the USA. I don't think the USA will go for points system unless there is a mass exodus of people into another country. And that will probably happen if there comes a day when US $71 = NRs.1 (wishful thinking को पराकाष्ठा .... he, he)