So what is the difference between the 20 and 30? 
I have been thinking of getting the 720 but I want to know, does it still have the feature that lets you talk to your TomTom and tell it where to take you? I know the 730 and 930 have this, but I'm not sure if this feature was removed for the 20s.
Also how well do these 4 versions place you on the map to where you really are. I hear people saying that cheaper TomToms leave you around 2 blocks away from where you want to be. Are these models better at placing you closer to where you really are?
Any help is appreciated.
I have been thinking of getting the 720 but I want to know, does it still have the feature that lets you talk to your TomTom and tell it where to take you? I know the 730 and 930 have this, but I'm not sure if this feature was removed for the 20s.
Also how well do these 4 versions place you on the map to where you really are. I hear people saying that cheaper TomToms leave you around 2 blocks away from where you want to be. Are these models better at placing you closer to where you really are?
Any help is appreciated.