The worst was a pro baseball player (with a multi-million dollar contract) who refused to pay the bill for the system after stating "man, this is f***ing fantastic".

A fairly recent one was the client who cheaped out. Went with a ED PDP.

And now some two years later is bitching because his ED PDP doesn't look as good as his neighbors nice HD PDP (which cost 2k more).

Of course, according to him, it's MY fault that he doesn't really have HD.....