they thought Manet, Monet, Cezanne, Picasso, Matisse, etc were sh|t at the time, only for them to be loved later.

I'll hazzard a guess that 'the beef' will be pining away for a Madone in 20 years time, when he's 36 and fat, and doesn't have enough time to ride his bike, and his wife won't give him permission to buy one.