Good to know. We don't have deli-style American in my country as far as I know, so I don't know what that tastes like. It's all just individually wrapped slices, Laughing Cow etc, mostly for kids lunches.
I kind of know what you mean about the melt quality though. I'm a kiwi so I always have a ton of cheddar available, but for a really good burger it's nice to have something softer like brie or blue.