Many of these vendors will let you know when they have sales or will be at shows if you have purchased on line from them. That puts you on their mailing list. You can also check their websites, which often say what shows they will be at, and dates. Another resource is your local Orchid Society website for that info. I still get e-mails from Parkside, after 5 years, and Andy's sends me almost weekly e-mails, though I only ordered on line once either. Of course you can always watch this forum, where our local up coming shows are usually mentioned. The shows are always fun, and you get to know the vendors.