True!
Though I'm very worried about the fact that such a switch often comes as a slippery slope. It sure takes a LOT of communication and reassurance to get going, and if something isn't done just right, it can collapse the relationship altogether, rotting mutual trust. The anxiety about this alone may actually ruin any sort of practical realization on my end.
Besides, I'm not sure I can find all that many people so sexy in the first place. There are things I want to try which are not possible with her, like, the simplest of things, trying an actual dick, but I'd be hard pressed to find someone I'd be horny enough for. With all my drive, I'm quite sexually loyal, it seems.