Granted these producers make some pretty expensive wines as well, but they can be considerably more affordable than imports without sacrificing quality. Ask your wine merchant . If you have a knowledgeable wine merchant that you trust and who has recommended good selections in the past, ask him or her to suggest a reasonably priced sparkling wine. Be sure to make clear, however, exactly what your tastes are. Also try to find bottles that are still in boxes or are at least protected from direct light.
Light can damage a good bottle.
Look for sales . I have found that just after Thanksgiving, Champagne and sparkling wines seem to go on sale for about a week or so. This is just a personal observation and not based on any marketing surveys or research. You might also go shopping right after the holidays and pick up some bargains. This is the time to buy a variety of these wines and find the ones you like.