Open Question: How many people can view my website at the same time?

Hi i have a website with some funny videos on a static page , some flash games and a forum the number of total visitors i expect to visit it is about 100k+ a month i have some shared hosting on godaddy but they allow only 200 connections to be made at the same time they told me i need to upgrade to a VPS or Dedicated server. How many people at the same time can those servers handle? Do you think this plan would be ok or would it be slow and low bandwidth? Thank you for your time. • OS: Linux CentOS • RAM: 2 GB • Storage: 30 GB • Bandwidth: 1,000 GB/mo