If you've read about DVC members staying in Concierge at non DVC resorts, it's b/c "occassionally" DVC members get upgraded to Concierge while staying at non-DVC resorts. We were upgraded once to Concierge at GF & once to a room w/ the larger balcony at AKL before it became a DVC.
The concierge manager told me they would rather upgrade a DVC member b/c they had a better chance of renting the cheapest room which I had booked at GF than renting the Concierge room at the last minute. We were also only staying for 2 nights.
It is A LOT of points to stay concierge at a non-DVC resort--especially on a weekend. If you have an AP & there are discounts it's usually a better deal. You can also try other discounts through CRO such as
AAA. The new $95 fee really makes it expensive on top of using a lot of points.
Good luck! Concierge is a fun splurge.