My daughter has a Devon Rex cat, she's about 18 months old now. For her first year she entered her in shows, as a kitten in her first show she did really well, but once against the mature adults she didn't do so well. She's not doing to do it any more.
It's such a long day, I went with them, and it was exhausting, often not enough seats, and you have to be there by 8am, and can't leave till they tell you which is usually after 5pm.
It was an experience, and there are some lovely breeds out there. I don't like some of the extreem shapes, (I won't name any specifically so as not to upset people) Some breeds have changed and become more extreem over the years, I prefer the more natural ones.
If anyone is ever thinking about buying a pedigree they should visit a show, and see them in the flesh, some are smaller than you imagine, others so much bigger.