So SFX can list Marriott for example, because of a technicality? That an individual could theoretically deposit their week there? But the likelihood of actually booking a Marriot is close to zero because Marriott itself does not deposit any weeks into SFX?
I could maybe find a Hilton that would be acceptable.
Again, I understand that simply booking Vidanta would probably be both easiest and would get me the best quality (although the Mayan Palace is in desperate for an update, which I'm skeptical will ever happen, and that's our level). But we have like 6 weeks left to use, maybe 7, and there is no way we're going to use them there before the 10 years is up, and I'm hoping to at least use 1 or 2 elsewhere.
Again, I don't know for a fact that SFX does NOT get developer deposits from Marriott. Even if they do, it's not guaranteed that EVERY MVC property will deposit. Same with Interval or RCI. They can list a resort and never get a deposit (I can't remember which one, II or RCI, but they list a resort in Key West and haven't had a deposit in like 5 years). So the resort listing is just a list of *potential* resorts (again, even Interval and RCI).
You could also look at renting your unit out directly via RedWeek if you don't mind their new processes which are (IMO) laborious and slow. Take the proceeds and then rent something you really want from an owner (via TUG, Facebook, or Redweek, etc.)
I'm not sure what the TDI (Interval term) is for Vidanta Mayan Palace (I'm guessing that's what you own?) But even then the membership and increasing exchange fee ($249 I believe next year) for Interval can add to the costs, etc.
Sometimes it's a numbers game and sometimes it's just what you want.
ie: Total "cost" for exchanging ANY week with ANYONE is your MF (plus other booking fees), plus the exchange company membership fee/exchange fee, booking fees = some number. Then you have to decide, was it worth $X to get $Y timeshare that you want?
An example was when Hilton USED to let us deposit our weeks with SFX. I would deposit a 2,400 point Vegas 1 BR week (cost me like $475 all in). I could then book (or exchange) via SFX for a 2 BR Grand Luxxe and it would cost me an extra $500. So "all in" for $1,000 I'd get a 2 BR Grand Luxxe, which was a steal, IMO. But then Hilton said we can only deposit with RCI and Vidanta jacked up their resort fees to almost $4,500 for a 2 BR Grand Luxxe.
I ended up depositing my 2 BR Seawatch on the Beach (hilton affiliate, so hilton can't tell me what I can and can't do and I did verify they allow exchanges into SFX/Interval for that property). However, my MF are like $1,300. So I exchanged into a 3 BR Vista Encantada with Interval so it was an additional $350 or so (yearly membership plus exchange fee), which I feel was still "ok" of a deal.