npub1vk5qp2k03a0xqyjugt2jxjq822q73q9ts3z0g4l89xqfgarhlgtqucsrde (npub1vk5…srde) And that doesn’t include the licensing fees for software and purchase and maintenance of the hardware to collect fares - or the technologists who work on fare related software.
Some of that security is because of vandalism & violence (even against drivers) and is not fare related, but it could be a net reduction even if you kept some budget for that.
Albuquerque went fareless when they realized it cost more to collect fares than they were bringing in.