I just went to renew a domain I owned, and found out that the registrar has bumped the price from $75/yr to $3,400/yr. Luckily I wasn't using the domain so I can just let it expire, but if my whole business and branding was built on that domain, that would be painful. Especially if it were just a hobby business that makes a few hundred a year it would basically kill the business.
I always knew in the back of my mind that there were no price caps after the .org controversy, but it slapped me in the face today and I wanted to remind everyone else.