Do I have anything against an ArcGIS Server solution? Not at all. ArcGIS Server still takes up a lot of room in my tool chest. I just wanted to freshen up the look and feel of a stale application and take a deep dive into the ever-changing API v3.
Let Google handle the base map and related traffic. Forget scheduling a map caching job to run for hours (and hours, and hours) every week.
Users are comfortable with Google Maps. Web mapping trends show Google Mapscontinues to catch (surely have surpassed by now) MapQuest.
The Google Maps API is powerful and has an active community developing applications with it. Got a question? Send it to the group and you'll get replies within hours, maybe minutes.
With Google there's always a chance of advertisements popping in at some point in the future. Personally, I have no problem with spatially relevant advertising. That's the price we pay for someone hosting and updating your web map services. Although, end users might not like the idea of an ad for Jim's Tire and Lube appearing near their parcel ownership information. [...]
Read more: http://www.directionsmag.com/article.php?article_id=3487