I got a TomTom One (Europe included) for under £200. However I bought it in the USA. At the time the same item in this country cost well in excess of £200 and did not include European maps. I think you can get one here in the UK now for less than the price I paid, but beware because it too, may not have European maps.
If you have 100% faith in a Sat Nav devices, do not come to my area of the country. Two local council's have had to make provisions of signposting and closing two roads due to inaccuracies of sat nav directions. One road leads to a ford which can prove very problematic in rainy periods. The other road now leads to a cul de sac, since a by-pass was opened a couple of years ago.I keep meaning to try my sat nav out in these two areas, as they are not far from where I live, might be an experience!.
In both cases, it caused the council's and the police to become involved, because both areas caused large artic lorries difficulties with reversing out of the situation, and the local residents were becoming very annoyed, especially when they were being woken up in the early hours of the morning on a more to often regular basis.
One person as now lost a nice little earner since the council's arrangements. No more assisting and pulling out the boy racer, rep's or "I'm not going to get stuck" car out of the ford now :O)
ebuyer don't vet the reviews, if somebody thinks a product is pants and posts a bad review it stays up. Just check out this RAM module click here , clearly very hit or miss and a lot of people hate it. So anything getting that much positive feedback is probably OK.