@Alan ... I kinda agree and as a part of a SIG (Strategic Open Source) under TCEA (Texas Computer Education Association) one of the goals is to promote the use of open source ... including (maybe even) providing things like 'pre-built' VM's with Moodle/etc.. I've Googled for such and can find some for Linux OS's - primarily for Ubuntu/CentOS.
Trouble is ... maintaining them ... lastest OS updates, latest Moodle, latest ... whatever is included. The one I've built does have scripts to easily update the OS and Moodle. For those that really avoid the command line, there is Webmin.
As far as Moodle.org providing, well ... think it best they concentrate their efforts on the code. But it would be nice if a community area was provided for those who would share their VM package - be it VMware or other.
Do you have something similar built for VMWare? Share if you can! ;)
'spirit of sharing', Ken