I purchased both.
The ILP kit I bought about a little over a year ago. It changed my life. While I am still bringing practices on-line and there was a lot of inertia on my part at first etc., it was well worth it in my opinion. Just the Big Mind DVD itself was well worth it to me. I had a profound and self-changing shift just off of the Big Mind process alone. 3-2-1 is both a very simple and, for me, a very beneficial practice. I have just recently started getting into the physical practices and I am pleased with how they are going so far.
My only gripes would be that just from what I have since seen on IN, the kit could be greatly improved on the theory side in terms of a more graphic intensive presentation of the model and a better book for the ILP kit. I would love to see a slick Jeff Salzman and Barrett Brown introduction to AQAL in ver. 2.0 of the kit as both are (IMO) exceptional at conveying their ideas. As for the book part, I think they have tried to rectify it by including the new intro book that recently came out in with the kit (last I heard anyway).
As for the Holosync I have only fairly recently started it. I have been keeping an updated journal of my experiences with the program here in Embodied Practice. I won't fill up this thread with a needless repeat. If you read that thread you can come to your own opinion about how to value my experience with it so far.
Personally, I would recommend option C which is save the money and fly or drive down to do the Big Mind process live with Genpo Roshi in Salt Lake. If funds are a problem, they often offer a discounted rate. After that rewatch/relisten to every single clip on IN and just start sitting and lifting... but that is just me. You know you better than the rest of us. Think about it and make the well reasoned decision that naturally and intuitively feels correct.
Best of luck!
Mark