Oh, heavens, where to start?
One of the primary reasons I gave up 10-string was "people's perceptions". I got tired of people coming up to me and making inane comments about the neck width. What irritated me most was the people (guys, usually) who said "I'm just standing here waiting for you to play some fast licks on those bass strings", followed by an intentionally awkward air guitar pantomime.
Pianists rarely use the full range of the keyboard, either, but the simile doesn't seem to carry across to the 10-string.
Salt Lake City, UT