It's a personal preference. I would probably say 65% of my groups last year booked in the endzones and loved it and there was never an issue with price with anyone. At least not that I heard.
I tell everyone, that when the action is in their end, it's a great place to be, but you may be relying more on the video board when the plays are happening on the opposite side of the field.
Lastly, you mention "ransom for a family outing to the stadium". Did you know that the south endzone is the Family Zone, where tickets for kids 15 and under are $19.50? Co-op also sells Family 4-Packs where for $125 you get 4 tickets and a parking pass.