Is it worth it to buy a rank with silverbull shares?

Silverbull share prices aren't that high right now, and I was wondering if I should try to buy some shares from the market to get a VIP rank.

Is the rank worth it or should I use my emeralds to buy a mythic instead?

I've been playing for quite a while now and have considered supporting the server, however I don't think I'm ready to pay up so much (the conversion rate between countries kinda sucks).