I've dealt with ED, for 40-years, and it is in no-way, a psychological dysfunction, it is purely physical, due to damaged nerves from a surgery. Egirlky, has really hit the nail on the head with her postings (wished I lived near that lady), that satisfactions can be very well met, with both partners working with it.
I too, was very down when I learned I could no-longer achieve an erection. I took the risk of confiding in some female friends, and to my surprise, they told me to not worry, as they liked oral and manual stimulation better, anyway. A penis can always be substituted with devices, and they were mostly interested in the "love-making-stimulations", that are performed by both parties pushing the right buttons.
Since I can have satisfying orgasms, then my main goals in sexual encounters with the opposite sex, is to make certain that she have as many satisfactions as we can make happen. Then, since I can cum anytime, concentrate on myself, with as much help from her as we both agree on, take care of my needs. Watching a female orgasm is one of the most satisfying, stimulating parts of sex for me. Since all the aformentioned is all a great part of sexual play, then I can honestly say that I've had no failures with any sexual encounters I've had. Too bad that everything else but sex, seems to be pressures that tear couples apart.
I did consider an implant at one time, and would never consider it today. . .It's not necessary, and am also afraid of the surgery messing-up my orgasmic functions. Also, have never tried Viagra, Cealis, etc. . .I don't think they would help. My doctor has mentioned that I might try Cialis, but I told her that I would rather leave things as they were. . .Just need a loving/understanding/sensitive lady at this time :-) Mike.