That does not explain why. Only Theymos can answer this question, unless he has already answered it in the past.
Opinions of the community are irrelevant in this case, and constitute only poor proxies of the actual rationale.
If Theymos has addressed this in the past, please do let me know, a quick search did not turn up anything.
Is this enough?
When VIP status was created, the BTC price was about $15. It's supposed to be very expensive. If everyone had VIP status it would lose its meaning.
Not really, at the original price VIP status cost around $750. That is massively different from the $350,000 it would cost now. I don't think there has been a single new VIP member in the last year? When something is priced so high, it is practically unattainable, and as such is not realistically for sale.