Apomorphine

I'm shocked that there are still guys over 60 who don't take one of the PDE5 supressors (Viagra, Cialis, Levitra) and who haven't made the investigation of the subject of old-guy sex their life's work. Back when I was 15 (about 55 years ago) I spent months in the library poring over medical texts looking at nasty diseased men and women but learning everything necessary to become an amateur gynecologist. I've spent the last few years repeating the experience only now it's on line and much more informative.
The general tone of disapproval from the public and particularly the powers -that-be (the legislators and the courts) and the medical profession has become worse as the technology improved, particularly in the last 10 or so years. There was a small interval mainly in the sixties and early seventies when society loosened up and then another tiny one in the late nineties when the medical profession realized they could make money out of the oldies' sexual dysfunction but here more than any other aspect of health and the body it's now necessary to be forceful and knowedgeable. Don't depend on the MD's to turn you into a super stud or even an old version of such. Do your homework.
You say As for the little blue pills, I never went to the doctor so I've never tried them. I feel my problem was more libido than physical but of course, I could be wrong. Grrrr... Libido is governed by your levels of testosterone which typically drop as we age. Most males of our age should be doing HRT like the women only our H is testosterone. But society hates this idea. Dreams of hormonally charged males raping their virgin grandaughters or synthetically enhanced athletes gaining an unfair advantage underly the discussion. Risks are vastly over-exaggerated probably to assuage the conciences of the blue-noses. The MD's for their part last heard of hormones in medical school years ago but know enough to understand that this is a vastly complex subject and since they see it as recreation (it's no longer procreation at our age) they feel they can fob off the customer with a PDE5 supressor and that's it. Since they won't do it, you have to: homework, homework, homework.
(Some minor insight on T (no substitute for your homework): There are multiple versions of T, some rarely tested for. The amount of T you need depends on the quantity of androgenergic receptors on your cells and their sensitivity. I've never heard of a test for this -- probably only research at the moment. Thus you can have high T levels with low receptor sensitivity and low libido or (as is the case with most teenagers) low T levels and high sensitivity and hence high libido. Teens also have much more of pulsitile production of T (and the other hormones) which appears to raise libido and the sperm production significantly. With old males T level production is almost flat. For current research try the Journal of Andrology and/or the British Journal of Urology (the US one costs money). Again, don't depend on your MD to do YOUR homework.]
IMO every aged male should be on T replacement, take a PDE5 supressor regularly and use some drug to raise the dopamine and/or norepinephrine levels (I use Yohimbine (USP grade) but L-Dopa or apomorphine could substitute - watch for nasty side-effects with these).
It's your body: you don't stop reading because you eyesight has deteriorated do you?