There's a particular dress I've liked for a long time, and it's no longer in production. I found someone on Tradesy selling it in my size for $700 (12% off retail). My budget is $500. It says purchased 2011. I'm not really sure if she's had it listed for 2 years or not. She doesn't have any photos of it posted, but I am familiar with the style # and it is described as "new with tags." Would it be terribly bad of me to message the seller and ask if she would consider a sale at $500?
I'm not really that familiar with the website, or the etiquette thereof, so please inform me if that would be a terribly gauche thing to do.