Fame is a double-edged sword. Whilst she got paid for appearing on the show, she never received what could be considered fair compensation by today's standards for her work. The dh's from The Big Bang Theory rightly get millions per episode. Doesn't matter that it's sh*t, people watch and advertisers pay. She probably thought in 1984 at the end of Happy Days' run that work on other shows and movies would become available to her but it never materialised, apart from occasional roles which became more and more sporadic as the years went by. To make matters worse she then had to put up 30+ years of questions and approaches from strangers wanting their piece of 'Joanie'. It's a sh*t business.