We will probably just end up buying more developer points later on as we are Diamond side and don't want points only to use for The US Collection or only for an HGVC property if we were to purchase an HGVC deed. I guess we missed out on being able to combine points via resale by not purchasing an HGVC deed, but I believe everything happens for a reason. I would like more points, but honestly, using both our The Club points and the Hilton Honors points we earn from our AMEX credit card use will probably be more than enough to travel two weeks a year. Also, although maintenance fees might go up, we are starting off at $1225 per year, and that is quite enough for us right now. We have 8000 biennial points. It would be nice to upgrade to 8000 annual points, but again, I think the maintenance fees would be too high.
Thank everyone for the helpful information on resale for DRI The Club points!