Costco has the best prices, of course, but you need to shop early. Bulbs usually go on sale after Labor Day weekend.

All the special varietals come from the mail order company or at the local nurseries. I have had good luck with the Van Engelen company. They carry the Tahiti daffodil which is one of my favorite narcissi. Their nice website can be accessed here http://www.vanengelen.com.