Hello and Welcome. For your reference you can get a 1kg of Cella for about $30. I know the original P.160 was discontinued which is probably why it is so expensive. But honestly performance is probably not noticeably better then Cella.
@Kris Church from western NY, glad you decided to join us at TSD. As for your question on shaving soap ... I almost exclusively use Stirling. At ~$2.25 an ounce; I can buy a lot of their soap for $100 and it's great in performance and scent. This all said it's only my opinion.
Welcome to TSD! I haven't personally tried this soap, but $100 can buy several soaps. If scent is not an issue then it may be worth it to you, but I would recommend trying a few samples from several artisans so you can find what works best for you. Keep in mind some people have allergic reactions to almond scents (Cella, ABC, P.160, Tippo Morbido, etc).