About how much money do you need to have a very much good time at evening horse show

$25-$35 per person is reasonable

If you are bringing a family, about $150. That's tickets, food, parking. If it's a couple, $80 or $90.

$15 admission ticket. $20 for food. $20 for amusement rides. Shopping depends on your taste and what you want to spend.

Well, you need to cover admission, parking, food etc. I would say at least one hundred dollars, so you can cover everything I listed plus if you want food and drinks. As well as whatever shops are open you may wish to buy from.

Depends on what you want to do