I like Champagne and sparkling wine that has some roundness and depth, like Billecart Rose. I love old Vintage Krug. I don't drink a lot of Champagne, and so I don't have a lot of knowledge or other frame of reference other than to say most of what I have tried has an almost metallic, and unappealing, taste. No interest in a Moët NV or the like. Any suggestions at prices under $75? Lower is better, because if I like it I'll drink it more often.