You've captured a lot in this comment.
You've characterized Arthur Shorin as a 'huckster' which in many places would be considered insulting. This guy spent 27 years at his Grandfather's company and grew its revenues by 5x [1]. That is some pretty serious credibility in the candy business. Not 'huckster'.
Then you talk about by giving up 75% you lose control. Which is true, but 100% of 0 is 0. But lets imagine that there is a chance that Arthur can grow the value of this particular company with his knowledge of the candy business and his credibility. If your company is valued at $1M and you own 100%, you give up 75% and with the help of that investor it becomes worth $5M. Your 25% stake is now worth $1.25M.
Contrast that with going broke. Having your net worth gro 25% is much better than having it shrink 100%.
Then the last lament, which I have heard many many times, is this "The real solution though is to plan things through and not get yourself in the situation of "needing" to raise cash or go bust. There are tons of ways to avoid getting stuck is this situation."
I think of it as the parallel universe theory of wishfulness, because we know that every decision creates two parallel universes, one where you made the right decision and one where you didn't. The "right" answer is not to be in this damn universe but to somehow step across dimensions into that really awesome one. Sadly people get lost looking across at that other universe.
It is the opposite of ridiculous here is to take the offer, not dwelling on all of the 'could have been' things, and resolve to learn everything you can about the candy business from this living legend. They have to take your meetings because they are in it to win, not lose their investment. Our entrepreneur is just hitting 30, spend 5 years learning the candy business (its not taught in business school) and then, start yet another candy business. Her 25% stake in this one is much more likely to be worth a decent chunk of change, she will know the people in the industry, and she'll have gone through all of the stages of getting a candy business from where she got it too before, into the big leagues. It will be much easier for her to succeed, and in that new business she will know exactly how much work it is to get into distribution and exactly how to negotiate with contract manufacturers, and exactly how to find the market and increase awareness. Perhaps we'll add her name next to Wrigley's or M&M Mars.
[1] http://artuitive.com/bio.html