If you opt to purchase a ticket at the park’s entrance, you will be paying somewhere around $81.99. Ordering it online will save you $10.00 per ticket, but even $71.99 isn’t cheap, especially when you are not going alone.
You can order your free Busch Garden tickets here.
So getting free Busch Garden tickets can save you a lot of money, since you apply for a free package deal and get more than a single ticket. If you don’t need all the tickets you can always sell them at popular marketplaces such as eBay or Craigslist.