Recognizing a person as a saint is actually an expensive process that
takes a long time and a lot of effort. Before a person can be
recognized, an exhaustive investigation must be launched into their
life. Miracles must be researched, often by doctors and other experts,
and cases need to be made. Donors often become involved in the
canonization process, bankrolling investigations to speed things along.
This means popular individuals and candidates with wealthy devotees can
be canonized much more quickly than a poor saint with a humble
following.
http://www.catholic.org/news/international/europe/story.php?id=67837
http://www.catholic.org/news/international/europe/story.php?id=67837