I say it depends on what was actually updated in 11.1.. if its worth it (or important) to you, then do it.. but for many people, its probably not worth it
Here's the release notes for 11.1:
http://www.lexusnavigation.com/pdf_docs/2011_Release_Notes_GEN5_GEN623092011144147.pdf
Something which they dont mention are the points-of-interest and what actually gets updated aside from the actual maps (for example, hardware firmware updates, updates and new POIs added, POI categories, etc)
I know the Honda/Acura updates used to include firmware updates occasionally. I didnt update for like 4 or 5 years, but it was a pretty big difference when I did update (faster operation, new POI categories), not to mention the area where I live did have lots of new roads and developments over the course of 4-5 years
Here's the release notes for 11.1:
http://www.lexusnavigation.com/pdf_docs/2011_Release_Notes_GEN5_GEN623092011144147.pdf
Something which they dont mention are the points-of-interest and what actually gets updated aside from the actual maps (for example, hardware firmware updates, updates and new POIs added, POI categories, etc)
I know the Honda/Acura updates used to include firmware updates occasionally. I didnt update for like 4 or 5 years, but it was a pretty big difference when I did update (faster operation, new POI categories), not to mention the area where I live did have lots of new roads and developments over the course of 4-5 years
