Every major vacation club has tried to impliment "resale restrictions" in their own way and it never works. Disney is just late to the game. None of the "restrictions" really restrict the buyer in any system, unless they don't know how to use the system they bought into. They just need a FOMO scare tactic to push to people. That's all the restrictions are meant to do. I know this because I'm a resale buyer of all 3 major companies.
Marriott: Deeds purchased after 2010 can't be enrolled for points unless the resale buyer buys a retail point package to "enroll it". It's no big deal for me (a savvy resale buyer) because I can just buy a 2 bedroom lock off Platinum week at a low maintenance fee resort for less than $3000 all-in, split the lock off into 2 units (studio + 1 bedroom) and deposit both into Interval International and trade back up to a two 2 bedroom units by paying a small fee. For example, I scored a 2 bedroom lock off at Lakeshore Reserve (a 4 star luxury property that's attached to the JW and Ritz Carlton in Orlando) this summer for $1150 for the week using my studio as the trader. If I were to use Marriott's points system (DC trust points) for the same week, I would have to pay $2200 worth of maintenance fees. I also scored a 2 bedroom at Marriott's Frenchman's Cove (4 star beach front resort in St Thomas) this summer as well for $1150 all in. It costs DC trust points members $2000 in maintenance fees for that same week. Yet, when I attend owner updates, I'm constantly pushed that I'm "missing out" not having the flexibility of points to for stays that aren't exactly 7 nights. Well, that's what my 2 other memberships are for!
Club Wyndham: Resale owners have complete access to "Club Wyndham" properties, but can't access the 80 or so "Worldmark" properties and don't get their crappy "VIP benefits" that barely give anything extra and would take about 70 years to break even with the "benefits" they give you. Resale owners still get a free RCI account and can access the same inventory as retail owners. The only "restriction" they ever push me at owner updates is FOMO. "You don't have an account with full access". Well, that's what my other 2 ownerships are for!
Disney: "Hey, I know a cheaper way to entice people to buy retail without having to offer them any benefits of value! Let's look at what our 2 main competitors do! Let's just make them afraid of missing out on something even though it doesn't actually exist!" I purchased DVC after they blocked resale owners from Riviera and honestly I couldn't care less about it because it is so easy for me to rent out a small portion of the 800,000 Club Wyndham points that I aquired for less than $2,000 all-in at 50% above the maintenance fee cost and use that profit to rent into Riviera or DL tower. You could also rent out your DVC points and rent back into Riviera if you only own 1 system. I just prefer renting out Wyndham because it's the easiest. That's why I own in multiple systems!
I will get a lot of hate saying this, but owning
resale in multiple systems is the way to go. You really do actually "miss out" by not doing so. This year, I sold 50 DVC points for $20/point and was able to cover most of what it costs me to exchange 105,000 of my Wyndham point into RCI to get one of the last few OKW rooms. So essentially, I have a week in a 1 bedroom at OKW this summer for 50 DVC points instead of 200 DVC points it takes as a DVC owner. It would cost me about $1300 to do the same with my Marriott. I will NEVER use DVC points to stay at OKW or SSR when it's half the price to use my Marriott. I will miss the days when it was only $1000/week with Wyndham.
Honestly, Disney is the one that makes me hesitate the most being resale BECAUSE of the buy in costs and the fact that they expire. Disney, Wyndham and Marriott will always have some value because of their quality, so not having an expiration isn't a big deal. I own about 8 weeks worth in Marriott/Wyndham and I make more in a month AS A TEACHER than I spent on aquiring everything. Do I take 8 weeks worth of vacations? No. I sell them and use the profit to pay for my own vacations

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Resale owners don't miss out, it's the people who dump insane amounts of money on their retail ownerships AND people who stick to 1 system that miss out.....on the good deals!