The scarce traffic on Wikivoyage is not especially surprising: there is
a lot of competition in this niche and Wikivoyage is not particularly
different in content etc. from some of its competitors.
The evidence accumulated in the last few years suggests that we should
accept that Wikivoyage is one of those Wikimedia projects in the lower
end of traffic and with little hope for growth (like Wikiversity and
Wikinews in most languages). They are still useful for very specific
qualitative goals (such as collaboration with institutions which could
not have happened on other wikis) and should be assessed against those.
Nemo