The specific number of VIP's sold is not information we make publicly available. I know waiting in line blows, and it can be especially frustrating if you see people skipping in front of you. That said, we monitor on a daily basis and actively limit the VIP slots available for sale. If you look right now, not only is the server you're referring to (US Low Pop) sold out, US Medium, US Main, EU Medium, and EU Low Pop are all sold out as well. There is a high demand for people to join our servers, especially within days of a wipe. We work diligently to ensure there is a balance of VIP and non-VIP in any server at any given time.
I'd also like to point out: VIP is the only reason these servers are able to exist. We are an independent operation, run entirely off of donations and VIP sales. If it weren't for the players in the server paying for VIP, the server would not even be there. I hope this clarifies some of your concerns. Let me know if you have any other questions.