I think ~$840 of that is for dialtone, data, texts, etc. The other ~$360 is for PaaS and to be a Purism booster. It's up to you how much of is about being a booster and how much is about PaaS.

Perhaps you object more to the $840 than the $360? Did you see the price of the phone?

Edit: s/phone/dialtone/