
Yes I would say go and as others have said you can see the dogs close up and talk to exhibitors but please remember that although these people love their breed and talking about them, there main focus will be the dogs and what is going on in the ring. Also don't stop any exhibitor getting their dog ready or going into the ring.
I'm more then happy to talk to people about my breed and letting them see him and touch them but at the same time while I'm waiting for my class outside the ring I don't want my dogs coat messed or being wound up, accidently spooked etc etc etc. Just bare it in mind.
Also don't expect people to wake their dogs up for the public to see them. It's a stressful and tireing time for the dogs.
However I'm sure you do have the common sense and all what I have said you knew anyway :) I don't mean to be nasty in any way.
Crufts is a great experiance. You will need comfortable shoes and clothes and it will be very crowed, but you will enjoy it I'm sure :)