It could be also that Xamarin didn't want to use pricing it has no control over, e.g. what Microsoft dictates for commercial versions of Visual Studio. I assume

It could be also that Xamarin didn't want to use pricing it has no control over, e.g. what Microsoft dictates for commercial versions of Visual Studio. I assume that "contact us for a quote" would take you to the MS online store through their sales personnel anyway. edit: typo