My local family run bike MoT place only charge £25 instead of £30, & before he emigrated another local guy only charged £20. Been present at both when they've carried out tests, & they have been thorough, & picked up faults to fail, or issued advisories. Although both were sympathetic to older bikes.
So how does the funding of MoT's work? Do they get a set fee from the Govt to do the test?