Kropotkin said:
Seem to be quite a few Quests on EBay with City Select V6.
Depending on where you plan to use the GPSR, if you can get a GPSR with CitySelect 6 or CityNavigator 6, then hold off on buying a cartography upgrade until late next year, when version 8 will probably be released, you might just make out OK on the deal.
In the late 1990's and the first couple of years of this decade, there were really strong reasons to justify buying every cartography upgrade as soon as it was released. This was because not all parts of every city or country had been mapped in vector format, and whenever you bought an upgrade, you could count on finding significant additions to the coverage, everywhere.
Since about version 5 or 6, though, coverage of some countries - most notably the German speaking countries - has reached 100% levels. This means that the only difference you will see between version 6 and version 7 is more accurate POI information, and road map updates that have been made as a result of construction that has taken place in the last 2 years or so.
If you live in an area that already has 100% coverage in version 6, and if you don't plan to ride into an area that has benefited from huge additional coverage being added in version 7 (for example, south of the Alps or Pyrenees, or the Czech Republic), then it could be argued that getting a Quest with version 6 mapping and then just holding on until version 8 comes out before buying an upgrade might give you the best of all worlds - a fairly speedy, up to date piece of hardware, with 'reasonably' up to date cartography.
It's a tough call to make, because you need to know the extent of the cartographic coverage of your areas of interest in version 6. However, if it is any guideline to you, I accidentally loaded CN version 6 cartography (instead of version 7) for Switzerland into my new SP 2720 last month, and didn't notice I was using the old cartography until I went by a roundabout that I knew I had seen on my GPSR before, but didn't see that day. It turned out I had been driving for 3 weeks with the old cartography loaded and I didn't even notice it. Granted, Switzerland is one of the best countries in the world so far as having 100% road coverage completed back at version 5 and 6 - but, still, it makes food for thought.
Michael