Oribe italian resin flat brush

I’ve been trying to get my hands on a Mason Pearson brush in the US, but recently looked into other alternatives (not looking for a “dupe”—or the idea of a MP brush, i want the same long lasting quality), and in my research, the only one worth buying is the Oribe one. Denman and kent brushes are not long lasting and not nearly the same quality (from what I’ve learned), and the similar Crown Affair and Dry Bar brushes are better, but not the BEST. Is Oribe sold out because of the holiday season or is it always hard to purchase? What’s the best way to buy?