I stalked and waited for my first resale "Cinderella" contract for nearly six months. My criteria was that it had to be a specific resort, specific use year, a fairly tight range of points, and hit a given price range. When the contract came up for sale, it hit all of those goals AND came fully loaded. I couldn't dial the phone fast enough to call Fidelity and put in a full price offer. According to the broker, I was the first person who called, and the email had only gone out five minutes earlier.
For my next resale contract, I looked around to see what was available, found one that had been listed a week earlier with no sale yet, and made an offer which was lower than the already below market price, and it was accepted.
There's a common disease called "addonitis" among
DVC owners. You'll get it, and will never stop trolling the sale listings for additional points at a "good deal".