Let's review where some of the the other distros are at and what they
are doing for x86_64 as well. Everyone (and I mean everyone) has the
ability to run both 32 bit and 64 bit code.
For x86-64 and ia64 this makes sense. There are a good
number of non-free binaries out there -- though I must
admit that Debian traditionally gives non-free binaries
the cold shoulder.
Those of us running ppc have long gotten used to doing
without any of those non-free binaries. There isn't any
compatibility benefit to supporting 32-bit stuff. It's
only a matter of performance: do you want 1 glibc in RAM,