*Real Users*, or collectors/enthusiasts/nostalgics/etc that do have the stuff, but spends all of their time talking about it on Amiga.org? :p
MorphOS is usable for "real". It even has a web browser that beats the current Internet Explorer in some areas (like CSS3)!
Yes, in that regard you've got a point. I miss Flash support under OWB, but its a pretty good browser. And MorphOS is modern enough to provide the functionality I need for everyday use.
I hope AOS4 has a similar level of utility (I wouldn't know personally).
AROS certainly has a lot of programs available, so one day it may be mature enough to interest me.
And I suppose you could try to use a legacy Amiga as your primary system, especially if you were into pain.
But I suspect most 68K owners are as you stated either collectors, retro hobbyists, or just nostalgic for the "old days".