At least this gives us a final install size, 7 Gigs.
Microsoft appear to have released Halo Reach for download for 99999 Microsoft Points. Don’t think about trying to buy that many points though. The limit is way below that per account so you’ll be out of luck.
Update – Here’s the actual reason why this 1250 copy of Halo went on sale earlier today.
“We plan to provide a limited number of copies of ‘Halo: Reach’ using the Games on Demand technology for media review purposes only. While we are thrilled to be able to take advantage of the technology to provide media with a more accessible and convenient review experience, there are no plans to launch ‘Halo: Reach’ to the public through [Xbox Live download service] Games on Demand.”