This is a discussion on Table change? within the online poker forums, in the Cash Games section; How often do you change tables in live cash game sessions? What certain standards do you have when deciding to or not?
-level of play
When I played (now I currently play only freerolls) I used to change tables when my stack grew up a lot because of a fear of losing it. the more you have the more you can loose. Probably this fear is stupid a bit. But I used to do so.