I would be the first to admit my business plan was non-existent and all wrong for this add-on (now).
When it was a simple block of a featured thread it was fine.
The add-on is so much more than that now though.
Although sales have been relatively high, the time spent on developing and supporting it means I haven't even earned minimum wage on it.
Far from it.
That's my own fault and no-one else's though.
Still, we live and learn.
When I write a new portal for XF 2.0, I won't make the same mistakes.
I may even crowd fund it...