Adding another "No" to the fray . . .
Figured I might as well chime in here myself with a big fat NO.
Done the denial thing . . . done the purge thing . . . done the "hated myself thing" . . . doen the purge thing (oh, did I say that already?) . . . and finally accepted me for me.
I can't change who I am (although I've certainly prayed and wished for it a zillion times!), so the answer is No.
Three years seems like a common no-dress period
... mentioned here on the site. I've been through one five-year span and a three-year span with no c-dressing. Right now I'm at the end of that 3-year spell. Basically zero urge the entire time. Then, about two months ago, for some reason the urges came back. I have been feeling them faintly some of the time, strongly on occasion, and other times not at all.
In answer to your question, I would venture to say there are definitely former crossdressers who stopped at some point and never went back ---- they're just not on this website. One reason (which you mentioned) would be age--- if you are a particularly vain crossdresser and you have to feel like you're achieving at least some measure of female attractiveness when you dress femme, the results are going to please you less and less as the body ages.
Another reason would be what other people here on the site have referred to as laziness. The motivation to bag out on keeping two wardrobes and to keep erasing or covering up telltale signs is huge in my case. If I can help it, I don't ever want to dress femme again for the simple reason of time and effort.
But I still want to hold on to some part of this "different-ness." I want to keep being a transgender person. I think there is something in the whole essence or aura that is of great value.
And I don't want to continue on as a non-dressing crossdresser who, consciously or unconsciously, harbors condescending feelings toward cd-ers who want to quit but can't do it. Like former smokers who make a big deal about saying tsk tsk to anyone who lights up.