After the “Right to Deny Service” Case, What’s Next? Lawsuits Claiming the Services Aren’t Equal?

The Supreme Court has agreed to hear one of the “right to deny service” cases.  In this case, a Colorado court held that, under Colorado’s antidiscrimination law, a bakery could not refuse to sell a wedding cake to a same-sex couple who were getting married.  The baker claimed that being forced to provide a cake for a same-sex marriage violated his First Amendment rights of free speech and free exercise of religion.

I’ve always had two questions regarding to these cases.  First, why would anybody want to buy a wedding cake from somebody who doesn’t want to sell them one?  Why would they think they were going to get a good cake?

Second, if you do force a baker to provide a cake to a same-sex couple, how do you make sure he or she gives them a good cake?  Why doesn’t baker just agree to provide the cake and then do a lousy job?  How is a court going to control that?  Is the next thing for the court to allow same-sex couples to sue the baker for not doing as good of a job for them as he or she would have done for a heterosexual couple?  And who gets to decide which cake is better?
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PS I’ll volunteer to be the frosting taster if one is needed.