Personally I have nothing against .US (or .SE or whatever) addresses as
long as they match your organizational pattern. The Royal Institute of
Technology in Stockholm isn't leaving Sweden anytime soon, so .SE is
fine, and I suspect the same applies to your library. Having LSOFT.SE and
LSOFT.COM would already be a drag, but if in addition we had to have
subdomains for NY, NJ, DC and so on, it would be a ROYAL pain.
Eric