I normally stick to the dark chocolate, of late the local brand is not available so enjoy a little Godiva Belgium chocolate at 90% cocoa. About double the price but still cheaper than Lindt which is available.
Manufacturing processes are always interesting, I worked at a sugar plant for a couple of years where they started implementing flavours into syrup onsite during the 1980's.
Oh, the Godiva is really nice as well! Thankfully, we live near Belgium... so these can be found pretty easily and not too expensively!