Funny enough, for me, it depends on the "thing". Laptop or car? No dice; but water bottle and home PC, stickers on them. I don't go out of my way to sticker them up, its mostly a collection of stickers I think look "cool" or hold sentimental value. For example, I have the skydiving bumper sticker on my water bottle cause, while it is rather bland looking, marks the skydiving trip I took two years ago. The Hot Ones sticker on my tower is because I really like hot sauces.

Overall, I like to do it because I've done it since my high school folders. I used to tape magazine clippings all over it and even made a small amount of money doing it for others at my school.