I have sold contracts for new ones, but in honesty I spent more on the add-on than sold to replace.
We snagged 200 Direct VGC points in January and sold our 27 & 35pt VGC resale, as well as the 150pt SSR points we had, to help defray the cost.
We bought another 153pts at RIV (fixed week 46 - Last week of F/W most years, Thanksgiving some years), and sold 125pt at HHI to help defeay buy-in cost but also to reduce annual dues. Currently debating if we might sell 1 or 2 of our small RIV contracts to cover as well, or if we will just keep it all. We don’t stay at RIV often but it’s great for Epcot Festivals.
I have a little buyers remorse at the last, if only because we are now considering PIT (and will absolutely buy Reflections if it is built!), but it’s really a matter of figuring out what contracts I might sell to pick up PIT, if I decide to (I might just pick up a small resale and settle for enough points for 2 nights bungalow over NYE with banking and borrowing instead of 3 nights. It’s a bucket wish list. Or maybe I just figure out when we are going to do it and purchase transferred points from another owner). If the incentives are right, I might even sell our resale points to pick up all direct. We really enjoyed the Members Cruises and Members First Looks Cruises, so we want enough direct points to take advantage of those offerings when we want.