Well, at the time I chose to transition, my dysphoria was so bad I could barely orgasm anyway. I had made a promise to myself that when the potential rewards out-weighed the potential risks that I would double up on my efforts to get treatment and begin transitioning and that's what I did.
To my pleasant surprise, all this time on HRT and both my fiance and I notice a definite improvement in my sexual response even if I still don't enjoy any time I have to touch my genitals.
Now I'm looking at surgery... I have to say from where I stand now, if I could orgasm post-op and had no major complications, having a vagina would definitely be an improvement, but if I lost the ability to orgasm completely or ended up with severe complications, then I'd definitely regret it. I can't see how I would be displeased unless something went wrong and it's only the prospect of something going wrong that stops me...
...for now. There may come a day when the rewards outweigh the risks, and I take the chance just like I did with every other stage of my transition.