Aye if its done like that a counter somewhere would be nice. I know I am currently on 76 tickets (since I completed each stage once) but I ain't going to keep track all the time.
Update: from the home screen there is a few extra tabs. They are at the bottom of you normal tablist, just to the right of it (So right of the office button). Click the populairity one and you can go vote on your fav girl and see how many tickets you currently have.