The human mind is a wonderful decision maker. We can make a lot of decisions if given the information. It would be nice if the client told me more about the host I was downloading from such as:

How many other people are uploading from that host
When the host is typically online
Average upload speed from that client
If they are limiting upload bandwidth
Amount of uploads allowed from that host

This way I can determine whether it is worth wasting my time downloading a 500 MB file.