Be frank, how often have you heard that exchange? Seldom, I'd guess. Good champagne is a treat and rarely refused. There is something about its style and price which suggests good living. In short, it's classy. But aren't we forgetting many wines which don't have the cachet of champagne but, in many ways, are equally special? There are plenty of them - wines which are well worth the extra cost; wines which will be remembered as milestones in a lifetime's wine drinking; wines which are every bit as good for an impromptu celebration. Here are, in my view, a few fine bottles which will give great pleasure for around the same price as you pay for good champagne.