Yes we all think you should not buy from a developer. I am interested in how you intend to use HGVC to visit Kauai, because I am not aware of any HGVC resort there. Send me a pm and as a HGVC owner I can make a call and check current availability in Hawaii. Are you suggesting to purchase HGVC and then thru HGVC's RCI portal exchange into an RCI exchange in Kauai. You can do it, but most of the time you need to select the resort and week and go on a wait list. RCI is rarely a simple phone call and instantly you get your choice of selected resort, especially in Hawaii.
As far as recession, I note you did not share what you paid for your unit, because you know someone will reply with an EBAY link showing a similar unit from $2,500-$5,000. If you paid more than that remember that freebe HGVC points value can be computed by simply saying that for the MF of approx $1100 you get 5,000 pts, so each point is worth $.22. Furthermore, what is the expiration date of those freebie points, because if you can't use them within that expiration point then what value are they.
Enjoy the timeshare journey whether you recind and make a more economical decision or if you just jump in with a little less regard to the price. In the end, you will enjoy what timeshares have to offer.