A user might not know which she wants, first installing the one and then the other. It might be helpful to provide .jigdo's that partition the archives into mutually non-conflicting subsets, so this hypothetical user could start trying things sooner.
That's already a possibility. It's called download the base install (<1CD) and use aptitude or apt-get to install packages as you go.
-- Steve C. Lamb | I'm your priest, I'm your shrink, I'm your PGP Key: 8B6E99C5 | main connection to the switchboard of souls. -------------------------------+---------------------------------------------
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