I’d really like to be able to filter the emails so that I only receive ones that are things I can afford. I’m on a budget and I don’t care if its a $600 bottle for $50 - I can’t afford a $50 bottle of wine. A simple control that said “email me if the price per bottle is below ___”. Think of it as free marketing research for what your customers are looking to pay. Make it fuzzy, like “Email me its about $20 a bottle”. Whatever floats your boats.
Bonus points: Another filter for red/white/rose/other wines. I don’t know why, but why not?
Perhaps make them different “channels” of emails to subscribe to. That might be easier for your site software to do.
Anyways - great site!