So we have a room booked at the Poly, but it isnt subject to any discounts. We could switch over to the beach club and save a little over 2,000 with the new room discount. Is it worth it?? We have never been to Disney, and we havent had a vacation in 3 years - we are definitely in need of a splurge and want to do it "Right", but it does seem tempting to switch. We likely wont return to Disney for quite a few years after this trip. Our kids are young, so we plan to be at MK the most. Help!! Also, most of my ADRs based on the Poly location (not doing park hopper).
Would you be willing to change your ADRs if you switch to the BC or are they set in stone?
Given that you plan to spend the bulk of your time at the MK with young kids, the Poly would definitely be more convenient (due to MK boat and monorail access). That being said, $2000 is a
big price leap and the BC has a lot to offer! The BC has the best pool on property, for instance, and is extremely convenient to DHS and Epcot. The resort theme is also quite beautiful, IMO.
The BC and Poly are our absolute favorite resorts, so you truly cannot go wrong with either. I would do some BC research and, if it looks nearly as appealing as the Poly, make the switch. Given that this is a special trip for the family, though, I would not switch from the Poly if that is truly where your heart lies and you think that you will regret having not stayed there every day.
Also-- is there any particular reason why the new discount cannot be applied to the Poly? We were desperate to stay at the GF last December and found that, while the discounted rate did not show up for our particular dates, it did work when we extended the trip dates a couple of nights. We booked the extended dates and then just called to cancel those last couple of nights so that we still had the dates we needed with the discounted rate. May not have been fully in accordance with the rules

rolleyes1), but it worked out for us and I have no regrets. I would play around with the dates a bit and keep checking the Poly! Did you try other room categories too?