It sounds more like you worked hard for two weeks to make that $1000 over a 6-month period. That sounds like trying to me. Of course, there's nothing wrong with trying to make money.
You proved that it's possible to produce a scalable digital product in a short amount of time. That's always encouraging to all of us who are trying to do the same. However, the fact that you presumably haven't created another one since then also proves how hard it is.
True enough. The 'build it once, sell it forever' aspect is pretty compelling - but you do need that up-front effort. Unfortunately I haven't been able to muster the extra time since then to make something new.
To everybody in this thread: I absolutely should have marketed the hell out of this thing. What was interesting to me was the uptake without putting in that effort. I agreed whole-heartedly that I would have had much better results if I had actually done things 'properly'.