I don't quite understand why Bandol roses are so expensive. Yes, they're delicious, but I can't entirely justify spending $24-25 for one (or $32-35 for the Tempier), when there's dozens of also delicious examples from Provent, Spain, and other areas of france for $10-14.
There you have the answer it's delicious. And some of the wines go threw hell so you can can buy them, so a $5-$10 extra well be worth it. And all good roses cost around that much if you ask me.