Reminds me of online freemium games. Admission o...

Reminds me of online freemium games. Admission on Wednesdays is free (the line is a 20min wait) but many of the attractions are only open to paid members unless you pay $6 for each one. However, I did have a great time with my friend and his family as we still saw reptiles, monkeys, giraffes, ostriches, and several other species. I just wish we could have seen the tigers without paying...