It is interesting;
Many years ago a guy I knew in Sarth London could not mentally say the price he wanted to say so for instance if the price he wanted was £100.00 he just could not bring himself to say it so always went under that price.
This went on for ages in the end I told him to 'employ some to say the price'. In other words he could do the quote measure up etc then go away and give the price to this lady.The important thing is she had no emotional tie to the business, did not understand carpet cleaning or anything about machines chemicals etc so had no barriers in her mind to the price that was put before her.
She would call the customer up and inform them that based on the measurements taken, the time and work involved the price would be................whatever £100- £200-£300 and guess what, he got prices he wanted nearly every time.
Once this had been established he was comfortable to do it himself,, it's very strange how our minds work.
Incidentally there is no reason why you can not do low priced work either so long as the 'conditions' are right.