I definitely agree with most of what you've said Dianna... I have been micro-niche since I started. I have never been a prolific shooter, being a one person operation from day one.
This has been the primary reason for my not setting up a subscription site... like Photogregg mentioned above, I concentrate on quality, not quantity. I have always sold my work as physical products (photo CDs, videos and now DVDs) and individual downloadable series.
My primary domain of nlphoto.com is still offline... I'm about 2 weeks away from finally getting my domain hijacking issue resolved. If you would like Dianna, feel free to check my current alternate entrance at
http://www.onlinepantyhose.com/nlphoto/index1.html
Also as a side note... I now do as much or more business with my mainstream hosiery sales site at
http://www.onlinepantyhose.com/
than I do with my pantyhose content site...