I have previously had hosting accounts with HostGator, IX Web Hosting and FatCow. I don’t have them anymore.
With all three host sites, my service was severely limited once my websites started to grow. I had to move them all.
Hostgator was along time ago, so it looks like they changed
http://www.casinoaffiliateprograms.com/bb/46809-using-hostgator-vps-upgrade-downgrade-for-traffic-expectancy.html