Wow, you are making that much money a month?   Thats really good.  
I do not like pop-ups personally, just somethi9ng about them that bothers me.   And, I have thought about repeat visitors that is why a gateway was a good decision for the page I believe.  I went over all the different ways I could set-up the page and this was the best for repeat visitors.  The repeat visitor can return to the pages because they know the correct path.  I do not have stats for the amount people in this forum who return as a repeat visitors.  But I can tell you  there is a ratio of about 10-1 repeat to new visitors.  Which is an interesting stat.  
I'm not sure what that is an indication of, (that I need to bring in new visitors or the repeat visitors are coming back for more pics).  
It takes me several days of hard work to get a section of pictures up.  It has been said that the format is not the most user-friendly.  I would love to hear suggestions on how to make the picture pages more user friendly.   Please email me at 
[email protected]     Because the quickier I can put up the pictures the more pictures will appear and video will follow.  Now, It is just waiting on a hard drive doing no good.
I have been around the tickling/feet community since way back when I was viewing pages in pain ascii.  I do not sell videos or demand you pay to get access.  I just think their are people out there who would love to see some of the pictures I have collected over the years and still collect.  I love tickling and feet, I love bondage.  I mostly have matured into someone who likes to see normal everyday people involved in pictures like that.  Here are two links to a couple of my favorite links at the moment.
http://www.geocities.com/skynyd/
Staged Kidnapping
http://clubs.yahoo.com/clubs/bondageineverydaylife
Real life bondage
I do realize that very little tickling in involved (although the yahoo club has a few playful tickling pictures) but these pages stand out for their orginal content.