$7-10 is reasonable for an adult ticket.  

My season tickets to Trinity are $10 each. However, that is a chair back seat and a drink holder.

7 hours ago, new fan said:

$10 to $15 bucks is fine.

A frustrating thing today isn't so much the price but the requirement at some places that the ticket be bought exclusively online. I have seen older folks standing at the gate trying to figure it out give up and go home. 

I have worked gate a lot.  When we were cash only I always brought extra money and let people venmo me.  Now we are cashless and I have bought the ticket online for people if they are really struggling to figure it out and just give me the cash.   

36 minutes ago, rjal said:

I have worked gate a lot.  When we were cash only I always brought extra money and let people venmo me.  Now we are cashless and I have bought the ticket online for people if they are really struggling to figure it out and just give me the cash.   

Very kind of you @rjal.