afaik that's +VAT and also for LIRs only. LIRs apply markup, see https://www.lir.services/lir-sponsoring/ they charge 200€ per resource, so ASN + PI would be at last 400€/year that's way above the price of ARIN and you have a middleman.
You must have a sponsoring LIR for your resources or become a LIR yourself. The only exception is LEGACY resources (IPv4, no ASN) but that's a different story.