I haven't been to the one at Ripley, but we go to one in Derbyshire every year. We're usually down that way anyway so not too far out of our way. We always feel it's worth a look. Depends what you're looking for.....?
I went to the Nottingham exhibition last weekend. If you've never been to one, it's definitely worth a look. Sadly my missus wouldn't let me buy a 2011 Vermont XL