That's cool so they come like fermented already? Is that cheaper or are you going after flavor here?

They come ready to roast if that's what you mean. It's cheaper than most specialty coffee but the real upside is having the taste of "The first cup from the bag" every single morning. Unless you drink a lot of coffee, even your bag of roasted whole beans loses flavor after a month. You roast it every weekend however and you get that fresh flavor.

The greens can technically go stale too but it's in the realm of years until you see a noticeable difference.

Some coffee is processed with fermentation, but that's usually just to make removing the cherry easier. That process is called washed process coffee (and honey process is similar but with less water). The coffee bean is the seed inside the cherry. The bean itself doesn't ferment, although it can be affected by the process.