fix misleading return-on-investment statement

[arlin]

I believe that a sound return-on-investment argument can be made, but I think the current statement is a bit simplistic and easily mis-read. Where did we get the 7.5M figure?

The known budget is 250K for travel support. However, we also benefited from

• admin support for travel arrangements donated by sponsor
• event support including rooms and IT donated by sponsor
• organizer time volunteered by organizers

Snacks, coffee and room rental costs are trivial in comparison to 250K.

I would estimate our volunteered organizer time to be 3 to 5 person-days per event. Over all 9 events that would amount to 36 days = 5 weeks = 1/10 of a year. That is still small in comparison to 250K.

Can anyone estimate the value of admin support?