there is no 720p60p on the gopro 960. If you're doing POV (point of view) filming, i recommend 960 because it's tall and you can see more. if you're filming other people, shoot in 720p30p. the quality difference isn't a huge deal, it's HD either way. and honestly i would rather watch 720p footage than 960p footage.
I could care less about 1080p, if I had a GoPro I would never use it. I'm talking about 60p, which is essential to slow down your footage. I highly doubt there will never be a time where you want to do that and getting the 960 model takes away that option. Its already such a cheap camera, why would you cheap out even more?
i think you would actually be pretty surprised by how handy the 1080 can be. while i would never shoot in 1080 if i were doing sports, i did use it this summer when we were snorkeling. i had my T2i in cheap housing shooting at 1080p24p, and my friend shot with the gopro as a secondary camera at 1080p30p. worked really well. i do wish that i had the flat lens housing for the gopro though