Did this seller give you an opportunity to search RCI Points with a "play" account? I know Scott Riddle allows prospective buyers to play around with RCI Points to get an idea of what's there. He sells RCI Points on eBay and has a similar name to the company you are using, but his deals are in Texas with South African weeks you use for PFD to add more points cheaply.
I noticed the Hiltons on the Big Island are pretty reasonable in RCI Points. I don't care to go to the Big Island again, but I was tempted by those in RCI Points. If I ever did go to the Big Island, I would definitely want to stay at the Hiltons.

Nothing else would do.
People always say to buy where you want to go. I tried to do that, and now we own way too many places. We love Branson, so I bought the best in Branson--I bought two Marriott Platinum Branson weeks.
We love South Carolina, so I bought Sheraton Broadway Plantation--several weeks there.
We love Colorado and live here. We own five weeks in Colorado. Yes, we use them all.
I couldn't bring myself to buy Orlando (we do own DVC, though), even though we go 8 weeks per year. It's too easy to get nice Marriott's and Sheratons with the Colorado weeks, so why buy? We also get 2 bedrooms for the lockoff sides of our Sheraton Broadway Plantations. Cheap to go to Orlando and stay at the best places.
We wanted to stay in North Carolina one week on the way to Myrtle Beach so we bought Blue Ridge Village. Love that one but dislike the management company.
We love San Francisco and Anaheim so bought Shell Points (got them free).
We have a whole lot of weeks that we will use much of the time, but it was important for us to be able to exchange those weeks for the other places we want to go, like San Antonio, Orlando, Williamsburg (we own Wyn points there), New York City, Cape Cod, Gatlinburg, Nashville, Yellowstone Park, Washington State, Wash D.C., and the list goes on. We couldn't own everywhere.
We own a lot of Maui and Kauai weeks. I don't even want to tell you how many, I am so shocked myself. We want to go to Hawaii from January-early March when we retire. And really, who needs to even use our own weeks, when exchanging is cheaper to Shearwater? I am sorry I bought some of the stuff I bought. Rick just goes along with whatever I do.