|The statement is based on the fact that:|
1) although the disks may be available now, they are generally lost when it actually comes to needing them!
2) Windows will look for the i386 folder in certain situations. As you rightly point out this can be changed, however it depends on the expertise of the user and the reaction they may have when the "unable to find..." message appears!
Either way the amount of space gained is not going to be great for a server and is a short term fix to a long term problem. A long term solution will eventually be needed (i.e. an extra HDD) so the problem may as well be addressed now rather than waiting until there are no more "unneeded folders" to delete!!
I agree that I should have explained this more in my first post, I just didn't have the time.
Wizard ICT. Microsoft Certified Professional