Also, if you have developed a close bond with someone whom you sexually know, you can always experiment some more. Personally, I never try to get attached to a women as soon as I realize she hates tickling.
Yet I agree there might be very few true fetishist women, it is still very likely that a good relationship can turn women into true adepts of tickling. It is easy to get turned on by the mere thought your being intimate with your significant other or your GF or whatever.
I believe women can be talked into a lot of ideas if and only if you 1) find the woman who's open to new stuff 2) get her to like you 3) make it look attractive (you can practice a fetish, without making it look a fetish)
What I also believe: how professional studies can be, never are they accurate. Women have a higher libido than we men assume, or even women themselves realise. Yet, the risk is that being physically more vulnerable, women have to be far more subtle.
I believe there are many hidden tickling fetishists outside this website, I even believe the majority doesn't even know they have that fetish. People are very shy about these stuff.
More than 90% of the women masturbate, yet far below 50% dare admit it.
Also, if you get to tickle a non-fetishist woman and do it in a fashion she won't forget it and feels she gets intimate, you easily develop new fantasies. In fact, I remember very well how people got grossed out by tickling someone until the person wets herself/himself not long ago. Many people didn't dare admit, didn't even dare consider thinking, that it's very erotic to 'torture' someone beneat that point. Also it's an intimate side you never show ordinary people, so it's always special.
Now, 2007, at least 50% of this forum considers it his/her fantasy number one. These people have found out about a yet unexplored side of themselves. In statistics they would be called 'conservative' if you'd analyse them before they discovered that side.
The vital argument, however, is that I sincerely believe that if you get a girl to know tickling as a erotic thing, she'd likely still be open to it if the relationship ends, if she truly enjoyed it that is. She'd tease her oncoming BFs to give her the same treatment. Is it then right to not call her a fetishist? She has become one then, not? (that's also the reason it's not too hard for a porn producer to find fetish models btw, porn stars experiment WAY more, think about it!)
Many people have the potential, the way to trigger that side is the only hard part.