I think that for some it will be a pilgrimage, however, some people will be on this voyage more as a 'claim to fame' I feel.
Many pilgrimages are personal, and a way of finding who you are.... through relatives, roots, faith etc through our own past and ancestors, (as with rosemary) They are often private and moving and gives people a sense of completeness (closing a missing gap).
for it to be a pilgrimage the personal reason or 'gap' needs to be there, otherwise its just a holiday (altho' nowt wrong with that). many people flock to lourds with different reasons for going
sorry its a bit wordy, can't articulate very well this morning
Mx