
yup entirely depends on your needs. If your site is graphics intense then a good amount of badnwidth is needed, but you see many hosting accounts offering bandwidth in the tens of Gbs, 20Gb 30Gb 40GB, which really is overkill in most cases. Weborum , which is getting around 1000 uniques (less this holiday month) a day, 4000 page views a day and uses around 5Gb a month.
How much bandwidth has your site been using so far?