There is a big difference between a repetitive task that I initiate and wish to continue, and a repetitive task that someone else imposes on me.
If I want to do the same thing over and over, I just do it and it makes me happy. I'll stop whenever I feel like it; just leave me alone to continue, thanks. However, if someone else forces me to do it (i.e. at work), I want to run away screaming.
That's being an Aspie... We live in our own heads, not someone else's.
_________________
"If you can't call someone else an idiot, then you are obviously not very good at what you do."