Done business with holiday group a few times. Very happy with the outcome. Twice bought resorts in Mexico. You never need to pay the asking price, you can always offer them much less, and in my experience they have taken it depending how long they have had the inventory. All of holidaygroup inventory comes bulk lots from developer trade-in or possibly defaults. They do not selling business for the general public. IMO they make all their profits off the closing fees. It is all done inhouse by their company.
I also love Mazatlan, but that is usually a pretty inexpensive place to buy. Alot of deals out there.