Cost of operation makes them competitive on Price.

EDIT: https://www.envasetechnologies.com/comparing-total-cost-of-ownership-electric-vs-diesel-trucks/

https://traton.com/en/newsroom/current-topics/why-electric-trucks-can-be-profitable-more-quickly-than-many-people-expect.html

You can post links to you own data if you disagree, or just downvote if you don't like what these say...