Yup. This is the way. We own at both Poly and BLT.
Lower points at BLT than Poly for 1BR
Theme park view is closer. At night parking lot isn't as noticeable for watching fire works.
For New Years, BLT is a closer walk to MK if you wish to be on Main Street then quickly head back to the room.
Monorail ride to Poly Dec 30 or 31 will be next to impossible. Boat rides will be packed as well.
BLT has a viewing deck for
DVC members.
BLT has Villian's Lair previously Top Of the World Lounge. I think you need direct points to book here.
BLT has less if any non staying resorts guests passing through versus Poly