Edit: should be in the drugs thread, but hey ho, posted it now -
I'd say this goes for me, too. Experiences on ecstasy aren't as totally far-out as those on mushrooms or acid, but I've found they've stayed with me as a long-term thing to a much greater degree.
And who was it mentioned MDA? I think I had that in some pills once, it was like a stupidly strong, speedy and much trippier version of normal pills, would be great to get some more but I guess it usually just turns up as a contaminant in 'ecstasy' than as a drug in its own right.
I did... that was xmas day 2002 sorted. To be honest E as a whole is utterly and totally see-through as an experience, unless yr just utterly fucked in which case it makes little difference...