I while ago the Garmin i3 satnav devices were going cheep as they were at the end of the line, and after a lot of pondering I decided to get one. Although I don’t do that much driving and like to plan my journey in micro detail before I leave I am still very pleased I purchase the device.
It is a very basic device with limited functionality, but it doss have a full postcode look-up and gets me from A to B, and that is all I need. If you occasionally need to drive in a place that you are not familiar with then I recommend the Garmin i3 as a great budget device.
I mention this now because Comet have a few left of £99 in there online store.