I don't like logos on my bike either, and specifically asked the manufacturer of my Ti bike to NOT apply one. All it has is a badge on the head tube and (unfortunately) a name on the fork which I may still paint over. In addition to looking more old school / classic (which I like), I figure it might make it less attractive to thieves as it's harder to determine value (and sell). If someone wants to find out the make/model they can ask me.