I'm thinking I'm going to go artificial corks, as I'm going to be giving a lot of my wine away as gifts with "let it age" instructions. I don't believe many of the recipients will let it rest on it's side, so artificial corks it is.
I don't mind buying in bulk, wondering where people recommend going?
I don't know about cheapest, but I use Zorks , easy to put on and easy for someone to take off. They can also reseal the bottle if they don't finish the wine. Just need to make sure you have compatible bottles.