Football Stadium/Tickets Help

I was planning on going to a NYG PreSeason FootBall game at Gants Stadium and I was just wondering what row should I stop at? Like should I not even bother with rows above 10th row? In Giants Stadium rows go up to Row 40. I was thinking of getting these tickets at like row 20, is that to high and not worth it?

Thanks for the help.

EDIT: Also do endzone seats suck?