Redhulk50 I was in the same situation (Q2, only for porn). I had seen quite a few people here posting that in terms of video quality Q3 is only a minimal leap and on my first day I was underwhelmed as well. However, after like two days of usage I changed my mind and came to the conclusion that the leap is big enough for me and now I am really happy that I got a Q3. In contrast to graphical elements which look much sharper than on Q2 I think videos as such do not look significantly better/sharper but somehow the optics of the device are better, which is probably due to the improved lenses and slightly increased FOV.
I don't agree with the statement in the previous post that Q2 is better for porn than Q3 (and I have no clue why it should be).