I'll sometimes go in low as a deception tactic. Rather than pick a nice, even figure like $10, though, I just put in something seemingly random, like $11.86. Anyone paying attention on the table might conclude I'm at the end of my BR and desperate. I find it also helps if I can get into a relatively cheap pot that goes to SD that makes me look like a complete donkey. First impressions on the poker table often stick, and getting that target on your stack right out of the gate can pay off quickly.