With options chosen "Hot" and "Normal" wash largest washers at our local charge >$11. IIRC base rate for cold wash and shortest cycle is about $10. Those prices have been in place for a few years now.
At the Days Inn in Burnsville MN back in the day. We had a 30# and a50# machine. There was also one in a nearby laundromat. They were good machines and solid performers.
I also worked with a Card Feed UW-85 UniMac in another job.
WK78