We have been 100s of PBN building building for our clients and we dont see price as a metric to choose first.
The $46K asking is not worth of the SEO power the domain retains.
Domain investors and SEOs evaluate expired domains very differently. We need to check the historical backlink profile, Wayback history, organic history, link decays, domain quality, and also there is SEO risk like spam markers, unnatural link velocity, suspicious redirects, and there is a lot of things to choose from.
DR alone doesn't tell you much. It shows very little data. I'd rather acquire a clean DR 20 domain with 30 relevant editorial referring domains than an inflated DR 70.
Also, expired domain doesn't automatically retain its power with the previous ranking after repurposing or redirecting it to a totally new domain.