At this point in my life (25 years old) Im not a fan of engraving guns. I enjoy the beauty of a nice engraved gun and wont knock anyone for having it engraved but it has no functional value and therefore I don't have engraved guns. Although I'm still young and building up my collection so I'm sure when I'm older my thought process will change from owning guns to shoot and owning artfully built guns.
Just my $.02 though