The only 'bias' I might have is that I strongly believe that PPl exams should be phased during the flight training course, so that they are relevant to the stage of training.
In more enlightened times, the CAA recommended which exams should be taken and in which sequence. The 'want it now, don't care how' brigade didn't just turn up to do their exams, then find somewhere cheaper to do their flying.... Whether that's in USA, Spain or Godknowswheristan is immaterial.
We used to charge nothing for PPL exams for our own students, until people joined wanting to do nothing except sit the exams before going to Florida. I don't know what the policy at that club is these days, but I would recommend that PPL exams should be free for the first attempt, but £15 for a second and that no third attempt would be permitted until the applicant had attended a specialist training provider. That would apply to the club's own students; anyone joining just to take the exams without wishing to learn to fly would be charged the same rate as the CAA now charge for 'any other ground exam'...