Flashkit has been a tremedously valuable resource, partly because of quality, and partly because of the shear volume of developers who use it and share their wisdom on the boards.
I think most of us realize we've been getting a good deal here. I know my company would hesitate at a $200+ subscription because the higher-ups don't personally realize the value. I think you could get the majority of the users to willingly pay $10, $20, even $50 for a subscription.
I don't think any of us want to see FlashKit go away because we smothered it to death with our usage.
At the very least, I bet if you put up a "Save FlashKit" with a PayPal button that let us put $5 in your account you would get a lot of donations.