Wow, assume things much? I am not VIP and truth be told I have spent more money on this game in the last year then I did in my last year of VIP subscription. The difference is I pay in 20 to 50 dollar chunks when it strikes my fancy instead of xx on a predetermined schedule.
That being said Points for VIP would be completely worthless. At what it would need to cost point wise it would be impossible to realistically farm the required points at a fast enough rate to get monthly VIP access, and if you are going to spend money on points then why wouldn't you spend less to just get VIP, hell it even comes with points.