Google Base can be used to combat spam since they will have access to your data fields. It'll be much easier to detect duplicate content even when its organized differently. As Google Base grows, this will probably be a big loss for affiliate marketers.
How can this be? Once you generate an automated system, you put very little time into it. I think at most I must have spent 10 hours developing the upload file and generating a script to FTP the text file. Divide that by the number of months I haven't touched the Froogle feed and it is a minimal investment. Maybe your costs were higher, but the time I spent with the number of sales I have received from Froogle, it has been the best use of my time.