An Extra E

What is it about the letter "E" that makes us think something is fancier than it is. I was driving on a major street the other day and was just looking at the store signs. First I came upon one that used the word "shoppe". Why did the owner think that he needed to add the extra "pe" to that word? Did he think that the public would think that the items he carried would seem more cultured? Then I passed a restaurant that used the word "grille". What purpose did the extra "e" carry? Is the food more continental with it? I guess I am a purest. I do not add anything to words. While I am talking about added letters, what is up with "honour" and "favour"?